Explain the effect of increase of (i) frequency (ii) intensity of the incident radiation on photoelectrons emitted by a phototube.

A stream of photons having energy 3.07 eV is incident on a metal plate of area 1 cm^(2) with an intensity of 1W.m^(-2) . If 1% of the incident photons emit photoelectrons, determine the value of saturation current.

Explain giving reasons for the following: The stopping potential (V^(0)) varies linearly with the frequency (v) of the incident radiation for a given photosensitive surface with the slope remaining the same for different surfaces.

How are the following effected by the increase in intensity of the incident light? (i) Threshold frequency. (ii) Kinetic energy of the emitted electrons. (iii) Strength of photoelectric current.

Explain the effect of (i) increasing pressure and (ii) continuous removal of Hl at constant temperature on the following equilibrium : H_2(g)+l_2(g)iff2Hl(g)

When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5eV to 0.8eV. The work function of the metal is

Statement I: The maximum velocity of the photoelectron emitted from a metal surface does not increase even if the intensity of the incident electromagnetic wave is increased. Statement II: Einstein's photoelectric equation: (1)/(2) mv_("max")^(2) = hf - W_(0)

The threshold frequency of a metal is f_(0) . When the light of frequency 2f_(0) is incident on the metal plate, the maximum velocity of electrons is v_(1) . When the frequency of the incident radiation is increased to 5f_(0) , the maximum velocity of electron emitted is v_(2) . Find the ratio of v_(1) to v_(2) .

When the light of frequency 2v_(0) (where v_(0) is threshold frequency) is incident on a metal plate, the maximum velocity of electrons emitted is v_(01) . When the frequency of the incident radiation is increased to 5 v_(0) , the maximum velocity of electrons emitted from the same plate is v_(2) . The ratio of v_(1) to v_(2) is

Define: (i) photoelectron and (ii) photoelectric current

If the frequency of incident radiation on a photocell is doubled for the same intensity, what changes will you observe in (i) kinetic energy of photoelectrons emitted (ii) photoelectric current?