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MHT CET Physics question

PhysicsDual Nature of Matter and RadiationMHT CET

Ultraviolet light of wavelength 300 nm and intensity falls on the surface of a photosensitive material. If one per cent of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of of the surface is nearly

Answer: (C)

Solution

Power on is W and the photon energy is J, so photons per second $=

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Question ID VK-083642