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Two radiations of photons energies 1 eV ...

Two radiations of photons energies 1 eV and 2.5 eV, successively illuminate a photosensitive metallic surface of work function 0.5 eV. The ratio of the maximum speeds of the emitted electrons is -

A

`1:4`

B

`1:1`

C

`1:5`

D

`1:2`

Text Solution

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The correct Answer is:
D
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