Gravitation - Result Question 26
27. Dependence of intensity of gravitational field (E) of earth with distance $(r)$ from centre of earth is correctly represented by:
[2014] (a)
(c)
(b)
(d)
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Answer:
Correct Answer: 27. (b)
Solution:
- (b) First when $(r<R) E \propto r$ and then when $r \geq$ $R E \propto \frac{1}{r^{2}}$. Hence graph (b) correctly dipicts.
The field strength of uniform solid sphere within it decreases linearly with ’ $r$ ’ and becomes zero as we reach at the centre of the sphere.
