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Assertion: Two spherical bodies of mass ...

Assertion: Two spherical bodies of mass ratio `1:2` travel towards each other (starting from rest) under the action of their mutual gravitational attraction. Then, the ratio of their kinetic energies at any instant is `2:1`
Reason: At any instant their momenta are same.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If Assertion is false but Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
`K = p^(2)/(2m)`
As momentum is equal and opposite
`therefore K alpha 1/m`
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