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In thomson's experiment, a magnetic fiel...

In thomson's experiment, a magnetic field of induction `10^(-2) wb//m^(2) ` is used. For an undeflected beam of cathod rays , `a p.d.` of `500V` is applied between the plates which are `0.5` cm. apart . Then the velocity of the cathod ray beam is ….`m//s`.

A

`4xx 10^(7)`

B

`2xx10^(7)`

C

`2xx10^(8)`

D

`10^(7)`

Text Solution

Verified by Experts

The correct Answer is:
D
`V=( E)/( B)`
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