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Photoelectric threshold wavelength of metallic silver is = 3800 Amstrong . Ultra -violet light of = 2600 Amstrong is incident on silver surface. Calculate a)the value of work function in joule and ev (ans -> 3.27eV and 5.23 x 10 -19 J ) b) maximum K.E of the emitted photoelectrons (ans -> 1.5 eV ) c) the maximum velocity of the photoelectrons ( Mass of the electron = 9.11 x 10 -31 kg) (ans -> 0.7829 x 10 -6 m/s ) Please show me the solution . Diksha


Photoelectric threshold wavelength of metallic silver is = 3800 Amstrong . Ultra

-violet light of  = 2600 Amstrong is incident on silver  surface. Calculate

a)the value of work function in joule and ev

(ans -> 3.27eV and 5.23 x 10-19 J )

b) maximum K.E of the emitted photoelectrons

(ans -> 1.5 eV )

c) the maximum velocity of the photoelectrons
   ( Mass of the electron = 9.11 x 10-31 kg)

(ans -> 0.7829 x 10-6 m/s )

Please show me the solution .

Diksha
 


Grade:upto college level

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