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An electron enters with kinetic energy K...

An electron enters with kinetic energy `KE_1`, between the plates of a capacitor with a velocity making angle `alpha` as shown and leaves with `KE_2` making angle `beta`?. Find `(KE_1)/(KE_2)` ?

A

`(sin^(2)beta)/(cos^(2)alpha)`

B

`(cos^(2)beta)/(cos^(2)alpha)`

C

`(cos beta)/(cos alpha)`

D

`(cos beta)/(sin alpha)`

Text Solution

Verified by Experts

The correct Answer is:
B
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