In an X-ray tube , electrons bombarding ...

In an X-ray tube , electrons bombarding the anode produce X-rays of wavelength 1 Å . The energy of an electron , when it hits the anode is

`19.8xx10^-16J`

`16.3 xx10^-16J`

`13.7 xx10^-15J`

`9.8 xx10^-16 J`

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