SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Find the cut-off wavelength for the photoelectriceffect in tungsten (work function for tungsten is 4.5 eV)
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138 nm
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414 nm
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552 nm
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276 nm
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Explanation:
Detailed explanation-1: -Answer and Explanation: The work function of tungsten metal is 4.52 eV. Hence, the longest wavelength capable of ejecting electrons or the threshold wavelength is 273 nm.
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