NEET Physics de Broglie Wavelength MCQ Question
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.
1.58 × 10^-10 m
2.64 × 10^-12 m
4.76 × 10^-14 m
3.96 × 10^-15 m
Correct Answer
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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