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A nucleus kept at rest in free space, br...

A nucleus kept at rest in free space, brakes up into smaller nuclei of masses `'m'` and `'2m'`. Total energy generated in this fission is `E`. The bigger part is radioactive, emits five gamma ray photons in the direction opposite to its velocity and finally comes torest. `["Given" h=6.6xx10^(-34)Js,m=1xx10^(-26)Kg,E= 3.63xx10^(-8) mc^(2), C=3xx10^(8)m//s)`
The wavelength of the gamma ray is

A

`0.02Å`

B

`0.03Å`

C

`0.04Å`

D

`0.05Å`

Text Solution

Verified by Experts

The correct Answer is:
b
Use conservation of energy and momentum.
Momentum of a photon= `h//lambda`
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