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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 that in the first case, the work function of the surface of the material is (h = Planck's constant, c= speed of light)

A

`(hc)/(3 lambda)`

B

`(hc)/(2 lambda) `

C

`(hc)/(lambda) `

D

`(2 hc )/(lambda)`

Text Solution

Verified by Experts

The correct Answer is:
B
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