The de‐Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature
kelvin) and mass
, is
Text Solution
Verified by ExpertsThe correct answer is:
A
Kinetic energy of a neutron in thermal equilibrium with heavy water at a temperature
is given as
(i)
Also momentum (p) is, 
From eqn. (i)

Required de‐Broglie wavelength is given as

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