MCQ
The penetrating power of  $X-$ rays increases with the
  • A
    Increase in its velocity
  • Increase in its frequency
  • C
    Increase in its intensity
  • D
    Decrease in its velocity

Answer

Correct option: B.
Increase in its frequency
b
(b) $\frac{E}{t} = P = \frac{{h\nu }}{t}$
i.e. Penetrating power $\propto$ energy $\propto$ Frequency

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