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Geography General circulation of the atmosphere and planetary winds MCQ Questions for Class 11 Science

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विषुवतीय अभिसरण क्षेत्र में क्या होता है?

What happens in the Intertropical Convergence Zone?

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Correct Answer

A. व्यापारिक पवनें मिलती हैंTrade winds converge

Step 1

Concept

In the Intertropical Convergence Zone, trade winds from both hemispheres meet. Link it with convergence and rising air in exams.

Step 2

Why this answer is correct

The correct answer is A. व्यापारिक पवनें मिलती हैं / Trade winds converge. In the Intertropical Convergence Zone, trade winds from both hemispheres meet. Link it with convergence and rising air in exams.

Step 3

Exam Tip

विषुवतीय अभिसरण क्षेत्र में दोनों गोलार्धों की व्यापारिक पवनें मिलती हैं। परीक्षा में इसे अभिसरण और उठती हवा से जोड़ें।

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विषुवतीय अभिसरण क्षेत्र मौसम के अनुसार क्यों खिसकता है?

Why does the Intertropical Convergence Zone shift seasonally?

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B. क्योंकि सूर्य की ऊर्ध्व किरणों का क्षेत्र बदलता हैBecause the zone of vertical Sun rays changes

Step 1

Concept

The zone of vertical Sun rays shifts north and south with seasons. Remember that the ITCZ shifts with it in exams.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि सूर्य की ऊर्ध्व किरणों का क्षेत्र बदलता है / Because the zone of vertical Sun rays changes. The zone of vertical Sun rays shifts north and south with seasons. Remember that the ITCZ shifts with it in exams.

Step 3

Exam Tip

सूर्य की ऊर्ध्व किरणों का क्षेत्र ऋतु के साथ उत्तर और दक्षिण खिसकता है। परीक्षा में इसके साथ विषुवतीय अभिसरण क्षेत्र का खिसकना याद रखें।

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दाब प्रवणता बल किससे संबंधित है?

Pressure gradient force is related to what?

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Correct Answer

B. दाब के अंतरDifference in pressure

Step 1

Concept

Pressure gradient force is produced by differences in pressure. For exams, greater pressure difference means stronger wind.

Step 2

Why this answer is correct

The correct answer is B. दाब के अंतर / Difference in pressure. Pressure gradient force is produced by differences in pressure. For exams, greater pressure difference means stronger wind.

Step 3

Exam Tip

दाब प्रवणता बल दाब के अंतर से उत्पन्न होता है। परीक्षा में अधिक दाब अंतर का अर्थ तेज पवन याद रखें।

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यदि दो स्थानों के बीच दाब अंतर अधिक हो तो पवन गति कैसी होगी?

If pressure difference between two places is high, how will wind speed be?

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Correct Answer

C. तेजFast

Step 1

Concept

When pressure difference is high, wind speed is high. Remember the direct relation between pressure gradient and wind speed in exams.

Step 2

Why this answer is correct

The correct answer is C. तेज / Fast. When pressure difference is high, wind speed is high. Remember the direct relation between pressure gradient and wind speed in exams.

Step 3

Exam Tip

दाब अंतर अधिक होने पर पवन गति अधिक होती है। परीक्षा में दाब प्रवणता और पवन वेग का सीधा संबंध याद रखें।

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सामान्य परिसंचरण की तीन मुख्य कोशिकाएं कौन सी हैं?

What are the three main cells of general circulation?

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Correct Answer

A. हैडली फेरेल और ध्रुवीय कोशिकाHadley Ferrel and Polar cells

Step 1

Concept

Hadley, Ferrel, and Polar cells are major parts of general circulation. Remember them as the three-cell model in exams.

Step 2

Why this answer is correct

The correct answer is A. हैडली फेरेल और ध्रुवीय कोशिका / Hadley Ferrel and Polar cells. Hadley, Ferrel, and Polar cells are major parts of general circulation. Remember them as the three-cell model in exams.

Step 3

Exam Tip

सामान्य परिसंचरण में हैडली फेरेल और ध्रुवीय कोशिकाएं प्रमुख हैं। परीक्षा में इन्हें तीन कोशिका मॉडल के रूप में याद रखें।

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उपध्रुवीय निम्न दाब क्षेत्र सामान्यतः किसके पास बनता है?

Subpolar low pressure belt generally forms near which latitude zone?

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Correct Answer

B. लगभग साठ अंश अक्षांशAbout sixty degrees latitude

Step 1

Concept

Subpolar low pressure is found around about sixty degrees latitude. Link it with the meeting of westerlies and polar winds in exams.

Step 2

Why this answer is correct

The correct answer is B. लगभग साठ अंश अक्षांश / About sixty degrees latitude. Subpolar low pressure is found around about sixty degrees latitude. Link it with the meeting of westerlies and polar winds in exams.

Step 3

Exam Tip

उपध्रुवीय निम्न दाब क्षेत्र लगभग साठ अंश अक्षांशों के आसपास पाया जाता है। परीक्षा में इसे पछुआ और ध्रुवीय पवनों के मिलने से जोड़ें।

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ध्रुवीय उच्च दाब क्यों बनता है?

Why does polar high pressure form?

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Correct Answer

C. क्योंकि ठंडी घनी हवा नीचे बैठती हैBecause cold dense air sinks

Step 1

Concept

At the poles, cold dense air sinks and creates high pressure. Remember cold air and high pressure together in exams.

Step 2

Why this answer is correct

The correct answer is C. क्योंकि ठंडी घनी हवा नीचे बैठती है / Because cold dense air sinks. At the poles, cold dense air sinks and creates high pressure. Remember cold air and high pressure together in exams.

Step 3

Exam Tip

ध्रुवों पर ठंडी और घनी हवा नीचे बैठती है जिससे उच्च दाब बनता है। परीक्षा में ठंडी हवा और उच्च दाब को साथ याद रखें।

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व्यापारिक पवनों को किस प्रकार की पवनों में रखा जाता है?

Trade winds are included in which type of winds?

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Correct Answer

D. ग्रह पवनेंPlanetary winds

Step 1

Concept

Trade winds are regular and widespread planetary winds. Study them as examples of permanent winds in exams.

Step 2

Why this answer is correct

The correct answer is D. ग्रह पवनें / Planetary winds. Trade winds are regular and widespread planetary winds. Study them as examples of permanent winds in exams.

Step 3

Exam Tip

व्यापारिक पवनें नियमित और विस्तृत ग्रह पवनें हैं। परीक्षा में इन्हें स्थायी पवनों के उदाहरण के रूप में पढ़ें।

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उत्तरी गोलार्ध की व्यापारिक पवनें सामान्यतः किस नाम से जानी जाती हैं?

Trade winds of the Northern Hemisphere are generally known as what?

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Correct Answer

A. उत्तर पूर्वी व्यापारिक पवनेंNorth-east trade winds

Step 1

Concept

In the Northern Hemisphere, Coriolis force makes trade winds north-easterly. Remember north-east trade winds in exams.

Step 2

Why this answer is correct

The correct answer is A. उत्तर पूर्वी व्यापारिक पवनें / North-east trade winds. In the Northern Hemisphere, Coriolis force makes trade winds north-easterly. Remember north-east trade winds in exams.

Step 3

Exam Tip

उत्तरी गोलार्ध में कोरिऑलिस बल के कारण व्यापारिक पवनें उत्तर पूर्वी बनती हैं। परीक्षा में उत्तर पूर्वी व्यापारिक पवनें याद रखें।

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दक्षिणी गोलार्ध की व्यापारिक पवनें सामान्यतः किस नाम से जानी जाती हैं?

Trade winds of the Southern Hemisphere are generally known as what?

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Correct Answer

B. दक्षिण पूर्वी व्यापारिक पवनेंSouth-east trade winds

Step 1

Concept

In the Southern Hemisphere, trade winds come from the south-east direction. In exams, call them south-east trade winds.

Step 2

Why this answer is correct

The correct answer is B. दक्षिण पूर्वी व्यापारिक पवनें / South-east trade winds. In the Southern Hemisphere, trade winds come from the south-east direction. In exams, call them south-east trade winds.

Step 3

Exam Tip

दक्षिणी गोलार्ध में व्यापारिक पवनें दक्षिण पूर्वी दिशा से आती हैं। परीक्षा में इन्हें दक्षिण पूर्वी व्यापारिक पवनें कहें।

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