The threshold frequency of a certain metal is `3.3xx10^(14)Hz`. If light of frequency `8.2xx10^(...

The threshold frequency for a certain metal is 3.3xx10^(14) Hz. If light of frequency 8.2xx10^(1) Hz (hertz) is incident on the metal , find the cut - off voltage for photoelectric emission . Given Planck's constant h = 6.625xx10^(-34) Js (joule second ) . Charge of electron e = 1.6 xx10^(-19) C (coulomb).

The threshold freqeuncy of a certain metal is 3.3xx10^(14)Hz . If light of frequency 8.2xx10^(4)Hz is incident on the metal, predict the cut off voltage for photoelectric emission. Given Planck's constant, h=6.62xx10^(-34)Js .

The threshold frequency of a material is 2xx10^14 Hz. What is its work function in eV ?

The threshold frequency for a certain metal for photoelectric effect is 1.7x10^(15)Hz . When light of frequency 2.2xx10^(15)Hz is incident on the metal surface, the kinetic energy of the emitted photoelectrons is 3.3xx10^(-19)J . What is the value of the Planck's constant ?

The threshold frequency for a photosensitive metal is 3xx10^(14)Hz . The work function of the metal is approximately equal to [h=6.66xx10^(-34)Js]

The threshold frequency for a metal is 10^(15) Hz. When light of wavelenght 4000 Å is made incident on it, then

The light radiation of wavelength 6000 Å falls on a metal . The threshold frequency of a metal surface is 4 xx 10^(14) Hz . The maximum velocity of the emitted photoelectrons is