Gravitation Question 339
Question: A uniform spherical shell gradually shrinks maintaining its shape. The gravitational potential at the centre
Options:
A) Increases
B) decreases
C) remains constant
D) cannot say
Show Answer
Answer:
Correct Answer: A
Solution:
- The gravitational potential at the centre of uniform spherical shell is equal to the gravitational potential at the surface of shell i.e.,
Now, if the shell shrinks then its radius decrease then density increases, but mass is constant, so from above expression if a decreases, then V increases.
