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The threshold wavelength for photoelectr...

The threshold wavelength for photoelectric emission from a material is 5200 Å. Photoelectrons will be monochromatic radiation from a

A

50 watt infrared lamp

B

1 watt infrared lamp

C

1 watt ultraviolet lamp

D

50 watt sodium vapour lamp

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE=II
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