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Physics-de Broglie Wavelength

NEET Physics de Broglie Wavelength MCQ Question

Type: MCQ-numerical-Medium-Class 12

Calculate the de Broglie wavelength of a neutron with a mass of 1.67 × 10^-27 kg moving at a speed of 2.5 × 10^3 m/s.

A

1.58 × 10^-10 m

B

2.64 × 10^-12 m

C

4.76 × 10^-14 m

D

3.96 × 10^-15 m

Correct Answer

Option A

Detailed Explanation

Using the formula λ = h/p and p = mv, the de Broglie wavelength is calculated as λ = 6.63 × 10^-34 Js / (1.67 × 10^-27 kg × 2.5 × 10^3 m/s) = 1.58 × 10^-10 m.

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