JEE Main 2022 · 25 Jul · Shift 2 · Physics Q46

← JEE Main 2022 · 25 Jul · Shift 2

PhysicsSingle correct+4 / -1Question 46 of 90

An object is taken to a height above the surface of earth at a distance $\dfrac54$ R from the centre of the earth. Where radius of earth, R = 6400 km. The percentage decrease in the weight of the object will be :

36%

50%

64%

25%

Answer and worked solution

Official answer: A

g $\propto\frac1{r^2}$ : $\left(\frac45\right)^2=0.64$ , a 36% decrease.

(A)

Topics:Variation of g

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JEE Main 2022 · 25 Jul · Shift 2, Physics question 46