MCQ
A hollow spherical shell is compressed to half its radius. The gravitational potential at the centre
- Aincreases
- ✓decreases
- Cremains same
- Dduring the compression increases then returns at the previous value.
✓
Answer
Correct option: B.
decreases
b
$V=-\frac{G M}{r}$
$V=-\frac{G M}{r}$
Due to the negative sign, when the radius is halved the potential decreases.
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