If is the work function of photosensitive material in eV and light of wavelength of numerical value = h c e metre, is incident on it with energy above its threshold value at an instant then the maximum kinetic energy of the photo-electron ejected by it at that instant (Take h-Plank's constant, c-vel

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If is the work function of photosensitive material in eV and light of wavelength of numerical value = h c e metre, is incident on it with energy above its threshold value at an instant then the maximum kinetic energy of the photo-electron ejected by it at that instant (Take h-Plank's constant, c-velocity of light in free space) is (in SI units):

Quantrex Academy · Accepted Answer

Correct answer: C. e-

( K . E )_ = h c - _0 and = h c e ( K . E )_ = h c h c e - _0 (K . E)_ =e- _0 (K . E .)_ =e

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