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A nucleus moving with velocity bar(v) em...

A nucleus moving with velocity `bar(v)` emits an `alpha`-particle. Let the velocities of the `alpha`-particle and the remaining nucleus be `bar(v)_(1)` and `bar(v)_(2)` and their masses be `m_(1)` and `(m_2)` then,

A

`vec(v), v_(1)` and `vec(v)_(2)` must be parallel to each other.

B

None of the two of `vec(v), vec(v)_(1)` and `vec(v)_(2)` should be parallel to each other.

C

`vec(v)_(1)+vec(v)_(2)` must be parallel to `vec(v)`

D

`m_(1)vec(v)_(1)+m_(2)vec(v)_(2)` must be parallel to `vec(v)`

Text Solution

Verified by Experts

The correct Answer is:
D
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