Class 11 Geography - Movements of Ocean Water - Ocean currents Easy Quiz

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समुद्री जल की लहरें मुख्य रूप से किस कारण बनती हैं?

Sea waves are mainly formed due to which cause?

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Correct Answer

A. हवा के प्रभाव सेBy the action of wind

Step 1

Concept

Wind gives energy to the sea surface and forms waves. For exams, remember wind as the main cause of normal waves.

Step 2

Why this answer is correct

The correct answer is A. हवा के प्रभाव से / By the action of wind. Wind gives energy to the sea surface and forms waves. For exams, remember wind as the main cause of normal waves.

Step 3

Exam Tip

हवा समुद्री सतह पर ऊर्जा देकर लहरें बनाती है। परीक्षा में सामान्य लहरों का मुख्य कारण हवा याद रखें।

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लहर का शिखर किसे कहते हैं?

What is called the crest of a wave?

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Correct Answer

C. लहर का सबसे ऊंचा भागHighest part of a wave

Step 1

Concept

The crest is the highest part of a wave. For exams, link crest with height.

Step 2

Why this answer is correct

The correct answer is C. लहर का सबसे ऊंचा भाग / Highest part of a wave. The crest is the highest part of a wave. For exams, link crest with height.

Step 3

Exam Tip

लहर का शिखर उसका सबसे ऊंचा भाग होता है। परीक्षा में शिखर को ऊंचाई से जोड़ें।

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लहर का गर्त किसे कहते हैं?

What is called the trough of a wave?

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Correct Answer

A. लहर का सबसे निचला भागLowest part of a wave

Step 1

Concept

The trough is the lowest part of a wave. For exams, remember trough as opposite of crest.

Step 2

Why this answer is correct

The correct answer is A. लहर का सबसे निचला भाग / Lowest part of a wave. The trough is the lowest part of a wave. For exams, remember trough as opposite of crest.

Step 3

Exam Tip

लहर का गर्त उसका सबसे निचला भाग होता है। परीक्षा में गर्त को शिखर के विपरीत याद रखें।

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दो लगातार तरंग शिखरों के बीच की दूरी को क्या कहते हैं?

What is the distance between two successive wave crests called?

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Correct Answer

B. लहर की लंबाईWavelength

Step 1

Concept

The distance between two successive crests or troughs is wavelength. For exams, remember the difference between distance and height.

Step 2

Why this answer is correct

The correct answer is B. लहर की लंबाई / Wavelength. The distance between two successive crests or troughs is wavelength. For exams, remember the difference between distance and height.

Step 3

Exam Tip

दो लगातार शिखरों या दो लगातार गर्तों के बीच की दूरी तरंगदैर्ध्य होती है। परीक्षा में दूरी और ऊंचाई में अंतर याद रखें।

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लहरें सामान्यतः समुद्री जल में क्या स्थानांतरित करती हैं?

What do waves generally transfer in seawater?

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Correct Answer

A. ऊर्जाEnergy

Step 1

Concept

Waves transfer energy from one place to another. For exams, understand the difference between water particles and energy.

Step 2

Why this answer is correct

The correct answer is A. ऊर्जा / Energy. Waves transfer energy from one place to another. For exams, understand the difference between water particles and energy.

Step 3

Exam Tip

लहरें ऊर्जा को एक स्थान से दूसरे स्थान तक ले जाती हैं। परीक्षा में जल कणों और ऊर्जा के अंतर को समझें।

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सुनामी सामान्य हवा से बनी लहरों से कैसे अलग होती है?

How is a tsunami different from normal wind waves?

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Correct Answer

A. यह समुद्र के नीचे भूकंप जैसी घटना से बन सकती हैIt can be formed by undersea earthquakes

Step 1

Concept

Tsunami often forms due to sudden disturbance of the sea floor. For exams, do not treat tsunami as a normal wind wave.

Step 2

Why this answer is correct

The correct answer is A. यह समुद्र के नीचे भूकंप जैसी घटना से बन सकती है / It can be formed by undersea earthquakes. Tsunami often forms due to sudden disturbance of the sea floor. For exams, do not treat tsunami as a normal wind wave.

Step 3

Exam Tip

सुनामी अक्सर समुद्र तल में अचानक हलचल से बनती है। परीक्षा में सुनामी को सामान्य हवा वाली लहर न मानें।

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लहरों की दिशा मुख्यतः किससे प्रभावित हो सकती है?

Wave direction can mainly be affected by what?

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Correct Answer

A. हवा की दिशाDirection of wind

Step 1

Concept

Waves can move in the direction in which wind gives energy. For exams, study wind and wave direction together.

Step 2

Why this answer is correct

The correct answer is A. हवा की दिशा / Direction of wind. Waves can move in the direction in which wind gives energy. For exams, study wind and wave direction together.

Step 3

Exam Tip

हवा जिस दिशा में ऊर्जा देती है, लहरें उसी दिशा में बढ़ सकती हैं। परीक्षा में हवा और लहर दिशा को साथ पढ़ें।

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हवा की गति बढ़ने पर सामान्य समुद्री लहरों पर क्या प्रभाव हो सकता है?

What can happen to normal sea waves when wind speed increases?

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Correct Answer

A. लहरें अधिक बड़ी हो सकती हैंWaves can become larger

Step 1

Concept

Strong wind can give more energy and form larger waves. For exams, remember the relation between wind speed and wave size.

Step 2

Why this answer is correct

The correct answer is A. लहरें अधिक बड़ी हो सकती हैं / Waves can become larger. Strong wind can give more energy and form larger waves. For exams, remember the relation between wind speed and wave size.

Step 3

Exam Tip

तेज हवा अधिक ऊर्जा देकर बड़ी लहरें बना सकती है। परीक्षा में हवा की गति और लहर आकार का संबंध याद रखें।

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समुद्री लहर और समुद्री धारा में आसान अंतर क्या है?

What is an easy difference between sea wave and ocean current?

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Correct Answer

A. लहर मुख्यतः ऊर्जा का दोलन है, धारा जल का प्रवाह हैWave is mainly energy oscillation, current is flow of water

Step 1

Concept

In waves, water particles mostly oscillate, while in currents water flows. For exams, keep wave and current separate.

Step 2

Why this answer is correct

The correct answer is A. लहर मुख्यतः ऊर्जा का दोलन है, धारा जल का प्रवाह है / Wave is mainly energy oscillation, current is flow of water. In waves, water particles mostly oscillate, while in currents water flows. For exams, keep wave and current separate.

Step 3

Exam Tip

लहरों में जल कण अधिकतर ऊपर-नीचे दोलन करते हैं, जबकि धारा में जल बहता है। परीक्षा में लहर और धारा अलग रखें।

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ज्वार-भाटा का संबंध किस प्रकार की गति से है?

Tides are related to what type of movement?

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Correct Answer

A. आवधिक गतिPeriodic movement

Step 1

Concept

Tides rise and fall at regular intervals. For exams, call it periodic ocean movement.

Step 2

Why this answer is correct

The correct answer is A. आवधिक गति / Periodic movement. Tides rise and fall at regular intervals. For exams, call it periodic ocean movement.

Step 3

Exam Tip

ज्वार-भाटा नियमित अंतराल पर चढ़ता और उतरता है। परीक्षा में इसे आवधिक समुद्री गति कहें।

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तेज तूफानी हवा समुद्री लहरों को कैसे प्रभावित कर सकती है?

How can strong stormy wind affect sea waves?

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Correct Answer

A. ऊंची और शक्तिशाली लहरें बना सकती हैIt can create high and powerful waves

Step 1

Concept

Strong wind can give more energy and produce larger waves. For exams, remember the relation between storms and high waves.

Step 2

Why this answer is correct

The correct answer is A. ऊंची और शक्तिशाली लहरें बना सकती है / It can create high and powerful waves. Strong wind can give more energy and produce larger waves. For exams, remember the relation between storms and high waves.

Step 3

Exam Tip

तेज हवा अधिक ऊर्जा देकर बड़ी लहरें पैदा कर सकती है। परीक्षा में तूफान और ऊंची लहर का संबंध याद रखें।

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लहरों और ज्वार-भाटा दोनों में समान बात क्या है?

What is common between waves and tides?

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Correct Answer

A. दोनों महासागरीय जल की गतियां हैंBoth are movements of ocean water

Step 1

Concept

Waves and tides are both types of ocean-water movements. For exams, treat them as examples of ocean-water movement.

Step 2

Why this answer is correct

The correct answer is A. दोनों महासागरीय जल की गतियां हैं / Both are movements of ocean water. Waves and tides are both types of ocean-water movements. For exams, treat them as examples of ocean-water movement.

Step 3

Exam Tip

लहरें और ज्वार दोनों समुद्री जल की गतियों के प्रकार हैं। परीक्षा में इन्हें महासागरीय जल गति के उदाहरण मानें।

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लहरों और ज्वार-भाटा का स्कूल स्तर पर सबसे सही सार क्या है?

What is the most correct school-level summary of waves and tides?

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Correct Answer

A. लहरें प्रायः हवा से बनती हैं और ज्वार चंद्रमा-सूर्य के गुरुत्व सेWaves are usually formed by wind and tides by Moon-Sun gravity

Step 1

Concept

Waves and tides are both ocean-water movements, but their main causes differ. For exams, write the difference in causes.

Step 2

Why this answer is correct

The correct answer is A. लहरें प्रायः हवा से बनती हैं और ज्वार चंद्रमा-सूर्य के गुरुत्व से / Waves are usually formed by wind and tides by Moon-Sun gravity. Waves and tides are both ocean-water movements, but their main causes differ. For exams, write the difference in causes.

Step 3

Exam Tip

लहर और ज्वार दोनों महासागरीय जल की गतियां हैं, पर उनके मुख्य कारण अलग हैं। परीक्षा में कारणों का अंतर लिखें।

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