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JEE Main 24 February 2021, Shift 2, Physics Q4

Question 4 of 90 in this shift, Physics question 4 of 30, Section A.

A body weighs 49 N on a spring balance at the north pole. What will be its weight recorded on the same weighing machine, if it is shifted to the equator ? [Use

g = \frac{GM}{R^2} = 9.8\ \mathrm{ms^{-2}}

and radius of earth, R = 6400 km.]

(1) $49.17\ \mathrm{N}$
(2) $49\ \mathrm{N}$
(3) $48.83\ \mathrm{N}$ Official answer
(4) $49.83\ \mathrm{N}$

Official answer

Option 3

NTA final key.

Chapter: Gravitation
Topic: Circular Motion
Idea tested: Centrifugal Pseudo-Force

JEE Main 24 February 2021, Shift 2, Physics Q4

Same idea in other shifts