For photoelectric emission, tungsten requires light of 2300 Ao. If light of 1800 Ao wavelength is incident then emission
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a
Takes place
b
Don't take place
c
May or may not take Place
d
Depends on frequency
answer is A.
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Detailed Solution
In tungsten, photoemission take place with a light of wavelength 2300 Ao. ,ts emission of electron is inversely proportional to wavelength, all the wavelengths smaller then 2300 Ao will cause emission of electrons.