Define the term work function of a metal. The threshold frequency of a metal is `2f_0` is incident on the metal plate, the maximum velocity of electrons emitted is `v_1`, when the frequency of the incident radiation is increased of `5f_0` the maximum velocity of electrons emitted is `v_2`. Find the ratio of `v_1` to `v_2`.

Define the term work function of a metal. 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 emitted is v_1 , when the frequency of the incident radiation is increased to 5f_0 , the maximum velocity of electrons emitted is v_2 . Find the ratio of v_1 and v_2 .

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the stopping potential.

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the maximum kinectic energy of the emitted electrons.

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the maximum speed of the emitted photoelectrons?

If p.d. V applied across a conductor is increased to 2V, how will the drift velocity of the electron change?