NEET Physics de Broglie Wavelength MCQ Question
What is the de Broglie wavelength of a particle with mass 0.15 kg moving at a speed of 30.0 m/s?
48 × 10^-34 m
42 × 10^-34 m
76 × 10^-34 m
84 × 10^-34 m
Correct Answer
Detailed Explanation
Using the de Broglie wavelength formula λ = h/p where p = mv, the wavelength is calculated as λ = 6.63 × 10^-34 J s / (0.15 kg × 30.0 m/s) = 1.48 × 10^-34 m.
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