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JEEMAIN and NEET
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NEET PAST PAPERS
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2013
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Q)
For photoelectric emission from certain metal the cutoff frequency is $ν$. If radiation of frequency $2ν$ impinges on the metal plate, the maximum possible velocity of the emitted electron will be (m is the electron mass) -
( A ) $\sqrt{hv/(2m)}$
( B ) $\sqrt{hv/m}$
( C ) $\sqrt{2hv/m}$
( D ) $2 \sqrt{hv/m}$
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