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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

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

B

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

C

`sin(alpha)/cos(beta)`

D

`cos(alpha)/sin(beta)`

Text Solution

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The correct Answer is:
B
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