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MHT CET Physics question

PhysicsDual Nature of Matter and RadiationMHT CET

A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of . The velocity of the particle is

Answer: (C)

Solution

Equal wavelengths mean equal momenta, so \dfrac{m_e v_e}{m}\dfrac{9.1×10^{-31}×3×10^{6}}{10^{-6}\ kg}$

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Question ID VK-083659