Concept-wise Practice

area half MCQ Questions for Class 9

area half se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

2 questions tagged with area half.

यदि किसी जिले में जनसंख्या दोगुनी हो जाती है और क्षेत्रफल आधा रह जाता है तो जनसंख्या घनत्व लगभग कितना बदल जाएगा?

If a district's population doubles and its area becomes half, how will population density change approximately?

Explanation opens after your attempt
Correct Answer

C. घनत्व चार गुना हो जाएगाDensity will become four times

Step 1

Concept

Population rising and area falling sharply increases the ratio. Exam tip: check both changes in ( Density\(=\frac{\)Population}{Area} ).

Step 2

Why this answer is correct

The correct answer is C. घनत्व चार गुना हो जाएगा / Density will become four times. Population rising and area falling sharply increases the ratio. Exam tip: check both changes in ( Density\(=\frac{\)Population}{Area} ).

Step 3

Exam Tip

जनसंख्या बढ़ने और क्षेत्रफल घटने से अनुपात तेज बढ़ता है। परीक्षा में ( घनत्व\(=\frac{\)जनसंख्या}{क्षेत्रफल} ) में दोनों बदलाव देखें।

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यदि किसी क्षेत्र में कुल जनसंख्या समान है पर क्षेत्रफल घटकर आधा हो जाए तो घनत्व पर क्या प्रभाव होगा?

If total population remains the same but area becomes half, what will happen to density?

Explanation opens after your attempt
Correct Answer

A. घनत्व लगभग दोगुना होगाDensity will approximately double

Step 1

Concept

If the same population is divided over less area, people per unit area increase. Exam tip: remember the inverse relation.

Step 2

Why this answer is correct

The correct answer is A. घनत्व लगभग दोगुना होगा / Density will approximately double. If the same population is divided over less area, people per unit area increase. Exam tip: remember the inverse relation.

Step 3

Exam Tip

समान जनसंख्या कम क्षेत्रफल में बंटे तो प्रति क्षेत्र लोग बढ़ते हैं। परीक्षा में inverse relation याद रखें।

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