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An electron beam in an X-ray tube is acc...

An electron beam in an X-ray tube is accelerated through a potential of `40 xx 10^3` V These are then made to fall on a tungsten target. The shortest wavelength of X-rays emitted by the tube is :

A

0.31 `overset@A`

B

3.1 `overset@A`

C

0.31 cm

D

3.1 cm

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The correct Answer is:
A
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