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A photoelectric surface is illuminated s...

A photoelectric surface is illuminated successively by monochromatic light of wavelength `lambda` and `(lambda)/(2)`. If the maximum kinetic energy of the emitted photoelectrons in the second case is `3` times than in the first case , the work function of the surface of the material is
(`h` = Plank's constant , `c` = speed of light )

A

`(hc)/(2lamda)`

B

`(hc)/(lamda)`

C

`(hc)/(3lamda)`

D

`(3hc)/(lamda)`

Text Solution

Verified by Experts

The correct Answer is:
A
`(hc)/(2lamda)`
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DISHA PUBLICATION-DUAL NATURE OF RADIATION AND MATTER-EXERCISE -2 : CONCEPT ALLPLICATOR
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