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Home Questions GTJ5DC26E9
Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

The de-Broglie wavelength of neutron at 127°C is:
(Given Boltzmann constant, $k=1.38 × 10^{-23} J\, mole^{-1}K^{-1}, h=6.63 × 10^{-34} Js$, mass of neutron = $1.66 × 10^{-27} kg$)

Options:

1.264 Å

12.64 Å

8.28 Å

828 Å

Correct Answer:

1.264 Å

Explanation:

The correct answer is Option (1) → 1.264 Å

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