Physics-de Broglie Wavelength
NEET Physics de Broglie Wavelength MCQ Question
Type: MCQ-numerical-Hard-Class 12
Calculate the de Broglie wavelength of a proton moving at a velocity of 1.0 × 10^7 m/s. Assume the mass of the proton is 1.67 × 10^-27 kg.
A
96 × 10^-14 m
B
76 × 10^-34 m
C
6.63 × 10^-27 m
D
32 × 10^-15 m
Correct Answer
Option A
Detailed Explanation
Using de Broglie's formula λ = h/p, where p = mv. Substituting the given values: λ = 6.63 × 10^-34 Js / (1.67 × 10^-27 kg × 1.0 × 10^7 m/s) = 3.96 × 10^-14 m.
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