JEE Main 2022 · 28 Jul · Shift 1 · Physics Q35

PhysicsSingle correct+4 / -1Question 35 of 90

If the radius of earth shrinks by 2% while its mass remains same. The acceleration due to gravity on the earth's surface will approximately :

decrease by 2%

decrease by 4%

increase by 2%

increase by 4%

Answer and worked solution

Official answer: D

$g\propto R^{-2}$ : a 2% decrease in R raises g by about 4%.

(D)

Topics:Variation of g

JEE Main 2022 · 28 Jul · Shift 1, Physics question 35