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Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 26 February 2021, Shift 2, Physics Q26

Question 26 of 90 in this shift, Physics question 26 of 30, Section B.

In the reported figure of earth, the value of acceleration due to gravity is same at point A and C but it is smaller than that of its value at point B (surface of the earth). The value of OA : AB will be x:yx : y. The value of xx is ________.

The figure, in words

Circle labelled Earth with centre O (dot). A vertical line runs up from O through point A (inside the circle), point B (on the surface at the top), to point C above the circle. A double-headed arrow between B and C is labelled 3200 km. A radius arrow from O toward the lower left of the circle is labelled R = 6400 km.

Official answer

4

NTA final key.

Chapter
Gravitation
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.