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Dual Nature of Radiation and Matter
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Einstein's Photoelectric Equation : Energy Quantum of Radiation
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Threshold wavelength for a metal is 5200
Question
Threshold wavelength for a metal is 5200 A. The photoelectron will be ejected, if it is irradiated by light from
A
50 W infrared lamp
B
1 W infrared lamp
C
50 W ultraviolet lamp
D
0.5 W infrared lamp
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Correct option is A)
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