Class 11 steam explosion MCQ Questions

Question 1/10 Expert Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 24

रूटलेस कोन गहरे मैग्मा नली से सीधे जुड़ा क्यों नहीं माना जाता?

Why is a rootless cone not considered directly connected to a deep magma conduit?

Explanation opens after your attempt

Correct Answer

A. क्योंकि वह लावा द्वारा गीली सतह पर भाप विस्फोट से बन सकता हैBecause it can form by steam explosions where lava heats wet ground

Step 1

Concept

Rootless cone forms by local steam explosions. Exam tip: distinguish it from a main vent cone.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि वह लावा द्वारा गीली सतह पर भाप विस्फोट से बन सकता है / Because it can form by steam explosions where lava heats wet ground. Rootless cone forms by local steam explosions. Exam tip: distinguish it from a main vent cone.

Step 3

Exam Tip

रूटलेस कोन स्थानीय भाप विस्फोटों से बनता है। परीक्षा में इसे मुख्य वेंट शंकु से अलग पहचानें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Expert
Level: 24

Question Hindi:
रूटलेस कोन गहरे मैग्मा नली से सीधे जुड़ा क्यों नहीं माना जाता?

Question English:
Why is a rootless cone not considered directly connected to a deep magma conduit?

Options:
A. क्योंकि वह लावा द्वारा गीली सतह पर भाप विस्फोट से बन सकता है / Because it can form by steam explosions where lava heats wet ground
B. क्योंकि वह समुद्री प्रवाल से बनता है / Because it forms from marine coral
C. क्योंकि वह हिमनद की दरार है / Because it is a glacial crack
D. क्योंकि वह नदी की बालू पट्टी है / Because it is a river sand bar

Correct Answer:
A. क्योंकि वह लावा द्वारा गीली सतह पर भाप विस्फोट से बन सकता है / Because it can form by steam explosions where lava heats wet ground

Explanation Hindi:
रूटलेस कोन स्थानीय भाप विस्फोटों से बनता है। परीक्षा में इसे मुख्य वेंट शंकु से अलग पहचानें।

Explanation English:
Rootless cone forms by local steam explosions. Exam tip: distinguish it from a main vent cone.

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Question 2/10 Expert Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 23

रूटलेस कोन बनने में गीली सतह की भूमिका क्या होती है?

What is the role of wet ground in forming a rootless cone?

Explanation opens after your attempt

Correct Answer

A. लावा गीली सतह को गर्म कर भाप विस्फोट कर सकता हैLava can heat wet ground and create steam explosions

Step 1

Concept

A rootless cone has no direct connection to a deep magma source. Exam tip: separate it from a main vent.

Step 2

Why this answer is correct

The correct answer is A. लावा गीली सतह को गर्म कर भाप विस्फोट कर सकता है / Lava can heat wet ground and create steam explosions. A rootless cone has no direct connection to a deep magma source. Exam tip: separate it from a main vent.

Step 3

Exam Tip

रूटलेस कोन का गहरा मैग्मा स्रोत से सीधा संबंध नहीं होता। परीक्षा में इसे मुख्य वेंट से अलग रखें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Expert
Level: 23

Question Hindi:
रूटलेस कोन बनने में गीली सतह की भूमिका क्या होती है?

Question English:
What is the role of wet ground in forming a rootless cone?

Options:
A. लावा गीली सतह को गर्म कर भाप विस्फोट कर सकता है / Lava can heat wet ground and create steam explosions
B. गीली सतह मैग्मा नली बनाती है / Wet ground makes a magma conduit
C. गीली सतह समुद्री प्रवाल उगाती है / Wet ground grows marine coral
D. गीली सतह लावा को ग्रेनाइट बनाती है / Wet ground turns lava into granite

Correct Answer:
A. लावा गीली सतह को गर्म कर भाप विस्फोट कर सकता है / Lava can heat wet ground and create steam explosions

Explanation Hindi:
रूटलेस कोन का गहरा मैग्मा स्रोत से सीधा संबंध नहीं होता। परीक्षा में इसे मुख्य वेंट से अलग रखें।

Explanation English:
A rootless cone has no direct connection to a deep magma source. Exam tip: separate it from a main vent.

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Question 3/10 Expert Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 22

फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सूक्ष्म अंतर क्या है?

What is the subtle difference between phreatic and phreatomagmatic eruptions?

Explanation opens after your attempt

Correct Answer

A. फ्रिएटिक भाप विस्फोट हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया होती हैPhreatic can be a steam explosion while phreatomagmatic has direct magma-water interaction

Step 1

Concept

Both may involve water but direct magma role differs. Exam tip: read the terms carefully.

Step 2

Why this answer is correct

The correct answer is A. फ्रिएटिक भाप विस्फोट हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया होती है / Phreatic can be a steam explosion while phreatomagmatic has direct magma-water interaction. Both may involve water but direct magma role differs. Exam tip: read the terms carefully.

Step 3

Exam Tip

दोनों में जल शामिल हो सकता है पर मैग्मा की सीधी भूमिका अलग है। परीक्षा में शब्दों का अंतर सावधानी से पढ़ें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Expert
Level: 22

Question Hindi:
फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सूक्ष्म अंतर क्या है?

Question English:
What is the subtle difference between phreatic and phreatomagmatic eruptions?

Options:
A. फ्रिएटिक भाप विस्फोट हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया होती है / Phreatic can be a steam explosion while phreatomagmatic has direct magma-water interaction
B. फ्रिएटिक केवल प्रवाल है और फ्रिएटोमैग्मैटिक केवल नदी है / Phreatic is only coral and phreatomagmatic is only river
C. दोनों में जल का कोई संबंध नहीं / Water has no relation in both
D. दोनों केवल शांत लावा प्रवाह हैं / Both are only quiet lava flows

Correct Answer:
A. फ्रिएटिक भाप विस्फोट हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया होती है / Phreatic can be a steam explosion while phreatomagmatic has direct magma-water interaction

Explanation Hindi:
दोनों में जल शामिल हो सकता है पर मैग्मा की सीधी भूमिका अलग है। परीक्षा में शब्दों का अंतर सावधानी से पढ़ें।

Explanation English:
Both may involve water but direct magma role differs. Exam tip: read the terms carefully.

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1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
2. 2-8 sec: Show question in large readable text. Keep Hindi and English clean, no overlap.
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4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
6. 23-30 sec: Show short explanation with one exam tip.
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Question 4/10 Hard Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 24

यदि किसी ज्वालामुखी पर अचानक ध्वनि विस्फोट हो पर नया लावा न निकले तो कौन सा उद्गार संभव है?

If a volcano suddenly produces an explosion sound but no new lava appears which eruption is possible?

Explanation opens after your attempt

Correct Answer

C. फ्रिएटिक भाप विस्फोटPhreatic steam explosion

Step 1

Concept

In a phreatic explosion water turns to steam and new magma need not reach the surface. Exam tip: identify steam explosion separately.

Step 2

Why this answer is correct

The correct answer is C. फ्रिएटिक भाप विस्फोट / Phreatic steam explosion. In a phreatic explosion water turns to steam and new magma need not reach the surface. Exam tip: identify steam explosion separately.

Step 3

Exam Tip

फ्रिएटिक विस्फोट में जल भाप बनकर विस्फोट कर सकता है पर नया मैग्मा सतह पर जरूरी नहीं आता। परीक्षा में भाप विस्फोट अलग पहचानें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Hard
Level: 24

Question Hindi:
यदि किसी ज्वालामुखी पर अचानक ध्वनि विस्फोट हो पर नया लावा न निकले तो कौन सा उद्गार संभव है?

Question English:
If a volcano suddenly produces an explosion sound but no new lava appears which eruption is possible?

Options:
A. शांत हवाईयन उद्गार / Quiet Hawaiian eruption
B. केवल लावा नली प्रवाह / Only lava tube flow
C. फ्रिएटिक भाप विस्फोट / Phreatic steam explosion
D. समुद्री प्रवाल विस्फोट / Marine coral explosion

Correct Answer:
C. फ्रिएटिक भाप विस्फोट / Phreatic steam explosion

Explanation Hindi:
फ्रिएटिक विस्फोट में जल भाप बनकर विस्फोट कर सकता है पर नया मैग्मा सतह पर जरूरी नहीं आता। परीक्षा में भाप विस्फोट अलग पहचानें।

Explanation English:
In a phreatic explosion water turns to steam and new magma need not reach the surface. Exam tip: identify steam explosion separately.

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Question 5/10 Hard Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 24

लावा डेल्टा के किनारे भाप विस्फोट और ध्वंस साथ क्यों संभव हैं?

Why are steam explosions and collapse both possible at the edge of a lava delta?

Explanation opens after your attempt

Correct Answer

A. क्योंकि लावा जल से मिलता है और नया डेल्टा अस्थिर हो सकता हैBecause lava meets water and the new delta may be unstable

Step 1

Concept

Water contact causes steam explosions and loose new deposits may fail. Exam tip: treat coastal lava areas as high-risk zones.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि लावा जल से मिलता है और नया डेल्टा अस्थिर हो सकता है / Because lava meets water and the new delta may be unstable. Water contact causes steam explosions and loose new deposits may fail. Exam tip: treat coastal lava areas as high-risk zones.

Step 3

Exam Tip

जल संपर्क भाप विस्फोट करता है और ढीला नया जमाव टूट सकता है। परीक्षा में तटीय लावा क्षेत्र को उच्च जोखिम क्षेत्र मानें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Hard
Level: 24

Question Hindi:
लावा डेल्टा के किनारे भाप विस्फोट और ध्वंस साथ क्यों संभव हैं?

Question English:
Why are steam explosions and collapse both possible at the edge of a lava delta?

Options:
A. क्योंकि लावा जल से मिलता है और नया डेल्टा अस्थिर हो सकता है / Because lava meets water and the new delta may be unstable
B. क्योंकि नदी बर्फ बन जाती है / Because river turns into ice
C. क्योंकि हवा गुरुत्व खत्म करती है / Because wind removes gravity
D. क्योंकि प्रवाल मैग्मा बनाता है / Because coral makes magma

Correct Answer:
A. क्योंकि लावा जल से मिलता है और नया डेल्टा अस्थिर हो सकता है / Because lava meets water and the new delta may be unstable

Explanation Hindi:
जल संपर्क भाप विस्फोट करता है और ढीला नया जमाव टूट सकता है। परीक्षा में तटीय लावा क्षेत्र को उच्च जोखिम क्षेत्र मानें।

Explanation English:
Water contact causes steam explosions and loose new deposits may fail. Exam tip: treat coastal lava areas as high-risk zones.

Video Structure:
1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
2. 2-8 sec: Show question in large readable text. Keep Hindi and English clean, no overlap.
3. 8-15 sec: Animate A/B/C/D option cards one by one.
4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
6. 23-30 sec: Show short explanation with one exam tip.
7. 30-35 sec: CTA: "More free MCQs ke liye visit karein MuftShiksha.com".

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- Make 9:16 version for Shorts/Reels.
- Add Hindi-English natural voice-over.
- Add readable subtitles.
- Add light background music, low volume.
- Keep all text inside safe margins.
- Use smooth transitions, no clutter, no watermark except Muft Shiksha branding.
- Formula/Math/Chemistry text must stay exactly readable; use LaTeX-style clean rendering where needed.

Output Needed:
- Final narration script.
- Scene-by-scene visual direction.
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Question 6/10 Hard Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 23

रूटलेस कोन का नाम रूटलेस क्यों है?

Why is a rootless cone called rootless?

Explanation opens after your attempt

Correct Answer

A. क्योंकि उसका गहरा मैग्मा नली से सीधा संबंध नहीं होताBecause it has no direct deep magma conduit

Step 1

Concept

A rootless cone can form by steam explosions where lava heats wet ground. Exam tip: distinguish it from a main vent.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि उसका गहरा मैग्मा नली से सीधा संबंध नहीं होता / Because it has no direct deep magma conduit. A rootless cone can form by steam explosions where lava heats wet ground. Exam tip: distinguish it from a main vent.

Step 3

Exam Tip

रूटलेस कोन लावा द्वारा गीली सतह को गर्म करने से भाप विस्फोटों में बन सकता है। परीक्षा में इसे मुख्य वेंट से अलग समझें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Hard
Level: 23

Question Hindi:
रूटलेस कोन का नाम रूटलेस क्यों है?

Question English:
Why is a rootless cone called rootless?

Options:
A. क्योंकि उसका गहरा मैग्मा नली से सीधा संबंध नहीं होता / Because it has no direct deep magma conduit
B. क्योंकि उसमें कोई राख नहीं होती / Because it has no ash
C. क्योंकि वह केवल नदी द्वारा बनता है / Because it forms only by river
D. क्योंकि वह हमेशा हिमनद पर बनता है / Because it always forms on a glacier

Correct Answer:
A. क्योंकि उसका गहरा मैग्मा नली से सीधा संबंध नहीं होता / Because it has no direct deep magma conduit

Explanation Hindi:
रूटलेस कोन लावा द्वारा गीली सतह को गर्म करने से भाप विस्फोटों में बन सकता है। परीक्षा में इसे मुख्य वेंट से अलग समझें।

Explanation English:
A rootless cone can form by steam explosions where lava heats wet ground. Exam tip: distinguish it from a main vent.

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4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
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Question 7/10 Hard Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 22

फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सबसे सही अंतर क्या है?

What is the most accurate difference between phreatic and phreatomagmatic eruptions?

Explanation opens after your attempt

Correct Answer

A. फ्रिएटिक में भाप विस्फोट प्रमुख हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया प्रमुख होती हैPhreatic may be mainly steam explosion while phreatomagmatic involves direct magma-water interaction

Step 1

Concept

Both involve water but direct magma participation differs. Exam tip: remember the subtle word difference.

Step 2

Why this answer is correct

The correct answer is A. फ्रिएटिक में भाप विस्फोट प्रमुख हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया प्रमुख होती है / Phreatic may be mainly steam explosion while phreatomagmatic involves direct magma-water interaction. Both involve water but direct magma participation differs. Exam tip: remember the subtle word difference.

Step 3

Exam Tip

दोनों में जल जुड़ा है पर मैग्मा की सीधी भागीदारी अलग होती है। परीक्षा में शब्दों का सूक्ष्म अंतर याद रखें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Hard
Level: 22

Question Hindi:
फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सबसे सही अंतर क्या है?

Question English:
What is the most accurate difference between phreatic and phreatomagmatic eruptions?

Options:
A. फ्रिएटिक में भाप विस्फोट प्रमुख हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया प्रमुख होती है / Phreatic may be mainly steam explosion while phreatomagmatic involves direct magma-water interaction
B. फ्रिएटिक केवल हिमनद और फ्रिएटोमैग्मैटिक केवल नदी है / Phreatic is only glacier and phreatomagmatic is only river
C. दोनों केवल प्रवाल भित्ति बनाते हैं / Both form only coral reefs
D. दोनों में जल की कोई भूमिका नहीं होती / Water has no role in both

Correct Answer:
A. फ्रिएटिक में भाप विस्फोट प्रमुख हो सकता है जबकि फ्रिएटोमैग्मैटिक में मैग्मा और जल की सीधी क्रिया प्रमुख होती है / Phreatic may be mainly steam explosion while phreatomagmatic involves direct magma-water interaction

Explanation Hindi:
दोनों में जल जुड़ा है पर मैग्मा की सीधी भागीदारी अलग होती है। परीक्षा में शब्दों का सूक्ष्म अंतर याद रखें।

Explanation English:
Both involve water but direct magma participation differs. Exam tip: remember the subtle word difference.

Video Structure:
1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
2. 2-8 sec: Show question in large readable text. Keep Hindi and English clean, no overlap.
3. 8-15 sec: Animate A/B/C/D option cards one by one.
4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
6. 23-30 sec: Show short explanation with one exam tip.
7. 30-35 sec: CTA: "More free MCQs ke liye visit karein MuftShiksha.com".

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Question 8/10 Medium Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 24

ज्वालामुखी क्षेत्र में भाप से बने विस्फोट बिना नए मैग्मा के भी क्यों हो सकते हैं?

Why can steam explosions occur in a volcanic area even without new magma reaching the surface?

Explanation opens after your attempt

Correct Answer

A. गर्म चट्टानें भूमिगत जल को अचानक भाप बना सकती हैंHot rocks can suddenly turn groundwater into steam

Step 1

Concept

In a phreatic explosion heat can turn water into rapidly expanding steam. Exam tip: distinguish steam explosion from magmatic eruption.

Step 2

Why this answer is correct

The correct answer is A. गर्म चट्टानें भूमिगत जल को अचानक भाप बना सकती हैं / Hot rocks can suddenly turn groundwater into steam. In a phreatic explosion heat can turn water into rapidly expanding steam. Exam tip: distinguish steam explosion from magmatic eruption.

Step 3

Exam Tip

फ्रिएटिक विस्फोट में गर्मी जल को तेजी से फैलती भाप में बदल सकती है। परीक्षा में भाप विस्फोट और मैग्मैटिक उद्गार अलग समझें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Medium
Level: 24

Question Hindi:
ज्वालामुखी क्षेत्र में भाप से बने विस्फोट बिना नए मैग्मा के भी क्यों हो सकते हैं?

Question English:
Why can steam explosions occur in a volcanic area even without new magma reaching the surface?

Options:
A. गर्म चट्टानें भूमिगत जल को अचानक भाप बना सकती हैं / Hot rocks can suddenly turn groundwater into steam
B. समुद्री मछलियाँ विस्फोट करती हैं / Marine fish explode
C. हवा पत्थर में बदल जाती है / Air turns into stone
D. नदी जल सोना बन जाता है / River water becomes gold

Correct Answer:
A. गर्म चट्टानें भूमिगत जल को अचानक भाप बना सकती हैं / Hot rocks can suddenly turn groundwater into steam

Explanation Hindi:
फ्रिएटिक विस्फोट में गर्मी जल को तेजी से फैलती भाप में बदल सकती है। परीक्षा में भाप विस्फोट और मैग्मैटिक उद्गार अलग समझें।

Explanation English:
In a phreatic explosion heat can turn water into rapidly expanding steam. Exam tip: distinguish steam explosion from magmatic eruption.

Video Structure:
1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
2. 2-8 sec: Show question in large readable text. Keep Hindi and English clean, no overlap.
3. 8-15 sec: Animate A/B/C/D option cards one by one.
4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
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Question 9/10 Medium Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 24

लावा के समुद्र में प्रवेश करने पर भाप विस्फोट से कौन सी आकृति बन सकती है?

Which feature may form when lava enters the sea and steam explosions occur?

Explanation opens after your attempt

Correct Answer

C. लिटोरल शंकुLittoral cone

Step 1

Concept

Interaction between lava and seawater can deposit volcanic fragments near the shore. Exam tip: connect littoral cone with sea contact.

Step 2

Why this answer is correct

The correct answer is C. लिटोरल शंकु / Littoral cone. Interaction between lava and seawater can deposit volcanic fragments near the shore. Exam tip: connect littoral cone with sea contact.

Step 3

Exam Tip

लावा और समुद्री जल की क्रिया से किनारे पर ज्वालामुखीय टुकड़े जमा हो सकते हैं। परीक्षा में लिटोरल शंकु को समुद्री संपर्क से जोड़ें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Medium
Level: 24

Question Hindi:
लावा के समुद्र में प्रवेश करने पर भाप विस्फोट से कौन सी आकृति बन सकती है?

Question English:
Which feature may form when lava enters the sea and steam explosions occur?

Options:
A. सिल / Sill
B. लैक्कोलिथ / Laccolith
C. लिटोरल शंकु / Littoral cone
D. बैथोलिथ / Batholith

Correct Answer:
C. लिटोरल शंकु / Littoral cone

Explanation Hindi:
लावा और समुद्री जल की क्रिया से किनारे पर ज्वालामुखीय टुकड़े जमा हो सकते हैं। परीक्षा में लिटोरल शंकु को समुद्री संपर्क से जोड़ें।

Explanation English:
Interaction between lava and seawater can deposit volcanic fragments near the shore. Exam tip: connect littoral cone with sea contact.

Video Structure:
1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
2. 2-8 sec: Show question in large readable text. Keep Hindi and English clean, no overlap.
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4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
6. 23-30 sec: Show short explanation with one exam tip.
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Question 10/10 Medium Geography Interior of the Earth Volcanoes: types and volcanic landforms Class 11 Level 22

फ्रिएटिक उद्गार में विस्फोट मुख्यतः किस कारण होता है?

What mainly causes an explosion in a phreatic eruption?

Explanation opens after your attempt

Correct Answer

C. भूमिगत जल के अचानक भाप में बदलने सेBy sudden conversion of groundwater into steam

Step 1

Concept

In a phreatic eruption hot rocks can turn water rapidly into steam and cause an explosion. Exam tip: distinguish it from direct magma eruption.

Step 2

Why this answer is correct

The correct answer is C. भूमिगत जल के अचानक भाप में बदलने से / By sudden conversion of groundwater into steam. In a phreatic eruption hot rocks can turn water rapidly into steam and cause an explosion. Exam tip: distinguish it from direct magma eruption.

Step 3

Exam Tip

फ्रिएटिक उद्गार में गर्म चट्टानों से जल तेजी से भाप बनकर विस्फोट कर सकता है। परीक्षा में इसे मैग्मा के सीधे बाहर आने से अलग समझें।

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MCQ Data:
Class: Class 11
Subject: Geography
Chapter: Interior of the Earth
Topic: Volcanoes: types and volcanic landforms
Difficulty: Medium
Level: 22

Question Hindi:
फ्रिएटिक उद्गार में विस्फोट मुख्यतः किस कारण होता है?

Question English:
What mainly causes an explosion in a phreatic eruption?

Options:
A. बेसाल्टिक लावा के शांत बहाव से / By quiet flow of basaltic lava
B. समुद्री तरंगों के दबाव से / By pressure of sea waves
C. भूमिगत जल के अचानक भाप में बदलने से / By sudden conversion of groundwater into steam
D. हवा द्वारा राख हटाने से / By wind removing ash

Correct Answer:
C. भूमिगत जल के अचानक भाप में बदलने से / By sudden conversion of groundwater into steam

Explanation Hindi:
फ्रिएटिक उद्गार में गर्म चट्टानों से जल तेजी से भाप बनकर विस्फोट कर सकता है। परीक्षा में इसे मैग्मा के सीधे बाहर आने से अलग समझें।

Explanation English:
In a phreatic eruption hot rocks can turn water rapidly into steam and cause an explosion. Exam tip: distinguish it from direct magma eruption.

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1. 0-2 sec: Premium Muft Shiksha intro with logo glow and title: "MCQ Challenge".
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4. 15-18 sec: Add countdown/timer effect: "Socho... correct answer kya hoga?"
5. 18-23 sec: Reveal correct answer with green glow and subtle success sound.
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steam explosion MCQ Questions for Class 11

Practice Questions

रूटलेस कोन गहरे मैग्मा नली से सीधे जुड़ा क्यों नहीं माना जाता?

Concept

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Exam Tip

रूटलेस कोन बनने में गीली सतह की भूमिका क्या होती है?

Concept

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Exam Tip

फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सूक्ष्म अंतर क्या है?

Concept

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Exam Tip

यदि किसी ज्वालामुखी पर अचानक ध्वनि विस्फोट हो पर नया लावा न निकले तो कौन सा उद्गार संभव है?

Concept

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Exam Tip

लावा डेल्टा के किनारे भाप विस्फोट और ध्वंस साथ क्यों संभव हैं?

Concept

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Exam Tip

रूटलेस कोन का नाम रूटलेस क्यों है?

Concept

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Exam Tip

फ्रिएटिक और फ्रिएटोमैग्मैटिक उद्गार में सबसे सही अंतर क्या है?

Concept

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Exam Tip

ज्वालामुखी क्षेत्र में भाप से बने विस्फोट बिना नए मैग्मा के भी क्यों हो सकते हैं?

Concept

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Exam Tip

लावा के समुद्र में प्रवेश करने पर भाप विस्फोट से कौन सी आकृति बन सकती है?

Concept

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Exam Tip

फ्रिएटिक उद्गार में विस्फोट मुख्यतः किस कारण होता है?

Concept

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Exam Tip

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