MHT CET 2025 Physics question

PhysicsDual Nature of Matter and RadiationMHT CET 2025

Let and represents kinetic energy of electron and photon respectively. If de-Broglie wavelength of a photon is twice the de-Broglie wavelength of an electron then is (speed of electron = where C is the velocity of light)

Answer: (B)

Solution

For the photon , so . For the electron , so . Electron kinetic energy

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Question ID VK-102919