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If the operating potential of an X-ray t...

If the operating potential of an X-ray tube if 50 kV, the velocity of X-rays coming out of it

A

3 m/s

B

`4xx10^4 m//s`

C

`3xx10^8 m//s`

D

`10^8 m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
X - rays are e.m. waves . Hence their velocity is always equal to the velocity of light `=C = 3xx10^8 m//s`
(we cannot use the laws applied to the material particles like electrons ).
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