Given that a photon of light of wavelength $10, 000 o A$ has an energy equal to 1.23 eV. When light of wavelength $5000 o A$ and intensity $I_{0}$ falls on a photoelectric cell, the saturation current is $0.40 \times 10^{- 6} A$ and the stopping potential is 1.36 V; then the work function is :

Question

Given that a photon of light of wavelength

10, 000 o A

has an energy equal to 1.23 eV. When light of wavelength

5000 o A

and intensity

I_{0}

falls on a photoelectric cell, the saturation current is

0.40 \times 10^{- 6} A

and the stopping potential is 1.36 V; then the work function is :

Toppr Admin · Accepted Answer

Given that a photon of light of wavelength 10000˚A has an energy equal to 1.23 eV. When light of wavelength 5000˚A and intensity I0 fall on a photoelectric cell, the saturation current is 0.40× 10−6 A and stopping potential is 1.36 eV, then work function is0.43eV1.10eV1.36eV2.47eV