When cathode rays (tube voltage $\sim 10 \ kV$) collide with the anode of high atomic weight,then we get:

  • A
    Positive rays
  • B
    $X-rays$
  • C
    Gamma rays
  • D
    Canal rays

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The ratio of the energy of the photon emitted by the $K_{\alpha}$ line to that of the $K_{\beta}$ line is

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The order of voltage applied across the ends of an $X$-ray tube is ...... $V$.

The primary difference between $X$-rays and $\gamma$-rays is that:

When an $X$-ray tube operates at $60 \ kV$,the observed tube current is $50 \ mA$. Assuming that the total energy of the electrons is converted into heat,the rate of heat production at the anode in $cal/s$ is:

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