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The kinetic energy of the most energetic...

The kinetic energy of the most energetic photoelectrons emitted from a metal surface is doubled when the wavelength of the incident radiation is reduced from `lamda_1 " to " lamda_2` The work function of the metal is

A

`(hc)/(lamda_1lamda_2)(2lamda_2-lamda_1)`

B

`(2hc)/(lamda_1lamda_2)(2lamda_2-lamda_1)`

C

`(2hc)/(lamda_1lamda_2)(lamda_2+lamda_1)`

D

`(2hc)/(lamda_1lamda_2)(lamda_2-lamda_1)`

Text Solution

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The correct Answer is:
A
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