Assertion: Photosensitivity of a metal is high if its work function is small Reason: Work function =h upsilon0 where upsilon0 is the threshold frequency

Question

Assertion: Photosensitivity of a metal is high if its work function is small Reason: Work function =h upsilon0 where upsilon0 is the threshold frequency (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Work function is the minimum energy required to eject the photoelectron from photosensitive metal. Hence for metal to be photosensitive, the work function should be small
Work function

= h υ_{0}

, where

υ_{0}

is the threshold frequency

Q. Assertion : Photosensitivity of a metal is high if its work function is small Reason: Work function =hυ0​ where υ0​ is the threshold frequency

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Work function is the minimum energy required to eject the photoelectron from photosensitive metal. Hence for metal to be photosensitive, the work function should be small Work function =hυ0​, where υ0​ is the threshold frequency

Q. Assertion : Photosensitivity of a metal is high if its work function is small
Reason: Work function $= h υ_{0}$ where $υ_{0}$ is the threshold frequency

Work function is the minimum energy required to eject the photoelectron from photosensitive metal. Hence for metal to be photosensitive, the work function should be small
Work function $= h υ_{0}$ , where $υ_{0}$ is the threshold frequency