The wavelength of the de-Broglie wave associated with a thermal neutron of mass m at absolute temperature T is given by (Here, k is the Boltzmann constant)

Question

The wavelength of the de-Broglie wave associated with a thermal neutron of mass m at absolute temperature T is given by (Here, k is the Boltzmann constant), h 2 m k T, h m k T, h 3 k m T, h 2 m k T

MARKS App · Accepted Answer

KE of thermal neutron, 1 2 m v 2 = 3 2 k T or m v = 3 k m T ; So, λ = h p = h 3 k m T

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