93.Given that a photon of light of wavelength 10000 angstorm has energy 1.23 eV .Now when light of intensity I and wavelength 5000 angstorm falls on a photo cell the saturation current and stopping potential are 0.40 micro Ampere and 1.36 V respectively. THE workfunction is

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Q. 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 :

Q. A photon of wavelength

100 A^{0}

has energy 12.3 eV. If the wavelength

500 A^{0}

having intensity I falls on a metal surface, the saturation current is

0.40 μ A

and stopping potential is 1.36 V. The work function of the metal is

For intensity I of a light of wavelength $5000 \circ A$ the photoelectron saturation current is 0.40 $μ A$ and stopping potential is 1.36 V, the work function of metal is

Q. For intensity

I

of a light of wavelength

5000 ˚ A

the photoelectron saturation current is

0.40 μ A

and stopping potential is

1.36 V

, the work function of metal is :

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