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The threshold wavelength for photoelectric 27 emission from a material is 5200 Photo electrons will...

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The threshold wavelength for photoelectric 27 emission from a material is 5200 Photo electrons will be emitted when this material is illuminated with monochromatic radiation from a A 50 watt infrared lamp B 50 watt ultraviolet lamp C 1 watt ultraviolet lamp D B and C both

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