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A beam of electron accelerated by a large potential difference `V` is mode of strike a metal target of produce X-ray . For which of the following value of `V` , will the resulting X-ray have the lower minimum wavelength?

A

10 kV

B

20 kV

C

30 kV

D

40 kV

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The correct Answer is:
D
`lambda` will be minimum for maximum acceleration voltage
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