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The wavelength of de-Brogile waves assoc...

The wavelength of de-Brogile waves associted with neutrons at room temperature T K is

A

`(1.82)/(T) Å`

B

`(1.82)/(sqrt(T))Å`

C

`(25.15)/(sqrt(T))Å`

D

`(30.7)/(T) Å`

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda = (h)/(sqrt(2mK)) , K = (3)/(2)kT`
`:. Lambda = (h)/(sqrt(2m(3)/(2)kT)) = (h)/(sqrt(3mkT)) = (25.15 )/(sqrt(T))Å`
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