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Consider a particle , beta particle and ...

Consider a particle , `beta` particle and `gamma - rays` , each having an energy of `0.5 MeV` . In increase order of panetrating power , the radiation are .

A

`alpha,beta,gamma`

B

`alpha,gamma,beta`

C

`beta,gamma,alpha`

D

`gamma,beta,alpha`

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The correct Answer is:
A
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