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What will be the ratio of de - Broglie w...

What will be the ratio of de - Broglie wavelengths of proton and `alpha` - particle of same energy ?

A

1

B

2

C

4

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
B
de - Broglie wave length
`(h)/(p) = (h)/(sqrt(2m K.E)) rArr (lambda _(p))/(lambda_(a)) = sqrt((m_(a))/(m_(p))) = 2`
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