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The wavelength of de-Broglie wave associ...

The wavelength of de-Broglie wave associated with a thermal neutron of mass m kg at 27^⋅C is (KB is the Boltzmann constant and all quantities are in SI units)

A

`h/(sqrt100mK_B) metre`

B

`h/(sqrt900mK_B) metre`

C

`h/(sqrt400mK_B) metre`

D

`h/(sqrt300mK_B) metre`

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The correct Answer is:
A
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