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NEET · Physics · STD 12 - 11. Dual nature of radiation and matter
The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature \(T\) (kelvin) and mass \(m,\) is
- A \(\frac{h}{{\sqrt {mkBT} }}\)
- B \(\;\frac{h}{{\sqrt {2mkBT} }}\)
- C \(\;\frac{h}{{\sqrt {3mkBT} }}\)
- D \(\;\frac{h}{{2\sqrt {mkBT} }}\)
Answer & Solution
Correct Answer
(C) \(\;\frac{h}{{\sqrt {3mkBT} }}\)
Step-by-step Solution
Detailed explanation
Kinetic energy of a neutron in therma equilibrium with heavy water at a temperature \(T\) is given as \(K=\frac{3}{2} k T\) ..... \((i)\)
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