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The energy of the EM waves is of the ord...

The energy of the EM waves is of the order of `15keV`. To which of the spectrum does it belong?

A

`gamma`-rays

B

X-rays

C

Infra-red rays

D

Ultraviolet rays

Text Solution

Verified by Experts

The correct Answer is:
B
`E=15keV=15xx10^(3)xxeV`
`becauseE=(12400)/(lamda)eV`Å
`lamda=(12400)/(E)eV`Å
`lamda=(12400)/(15xx10^(3)eV)eV` Å
`lamda=.826`Å`(lamda lt 0.01`Å)
It is part of X-rays.
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