The ratio of speed of \( \gamma \)-rays and \( \mathrm{X} \)-rays is : (A) 1 (B) \( 1 \) (C) \( ...

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The ratio of speed of \( \gamma \)-rays and \( \mathrm{X} \)-rays is :
(A) 1
(B) \( 1 \)
(C) \( 1 \)
(D) none of these
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