First slide

Gravitational field intensity

Question

Dependence of intensity of gravitational field (E) of earth with distance ( r) from center of earth is correctly represented by :

Moderate

A
B
C
D

Solution

$E = - \frac{E_{0}}{R} r \dots (r < R) = - E_{0} R^{2} \frac{1}{r^{2}} \dots (r ⩾ R)$

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