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A potential difference of 20 kV is appli...

A potential difference of 20 kV is applied across an X-ray tube. The minimum wavelength of X-rays generated (in angstrom) is :-

A

`0.62`

B

`1.24`

C

`0.31`

D

`6.2`

Text Solution

Verified by Experts

The correct Answer is:
A
`V=20KV`
` E=20xx1.6xx10^(-19) eV`
`lamda_(min) =(hC)/(E) =0.62xx10^(-10) =0.62A`
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