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The wavelength of most energetic X-rays ...

The wavelength of most energetic X-rays emitted when a metal target is bombarded by `40 keV` electrons, is approximately
`(h=6.62xx10^(-34)J-sec,1eV=1.6xx10^(-19)J,c=3xx10^(8)m//s)`.

A

300 Å

B

10 Å

C

4 Å

D

0.31 Å

Text Solution

Verified by Experts

The correct Answer is:
D
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