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When light of wavelength 300 nm falls on...

When light of wavelength 300 nm falls on a photoelectric emitter,photoelectrons are liberated .For another emitter,light of wavelength 600 nm is suffecient for liberating photoelctrons.The ratio of the work functions of the two emitters is

A

`1:2`

B

`2:1`

C

`1:4`

D

`4:1`.

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MODERN PUBLICATION-UNIT TEST -07-EXERCISE
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