Dual Nature of Radiation and Matter

Question: The threshold wavelength for photoelectric emission from a material is 5200 Å. Photo-electrons will be emitted when this material is illuminated with monochromatic radiation from a

1) 50 watt infrared lamp

2) 1 watt infrared lamp

3) 50 watt ultraviolet lamp

4) 1 watt ultraviolet lamp (e) Both (c) and (d)

Solution:

Explanation: No Explanation

Photon and Photoelectric Effect

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