Photoelectric Effect

The stopping potential in an experiment on photoelectric effect is 1.5 V. The maximum kinetic energy of the photoelectron emitted would be:

The stopping potential in an experiment on the photoelectric effect is $1.5 \mathrm{V}$. The maximum kinetic energy of the photoelectron emitted would be

The stopping potential in an experiment on the photoelectric effect is $2 \mathrm{V}$. The maximum kinetic energy of the photoelectrons emitted would be

The maximum kinetic energy of a photoelectron is 3 eV. Its stopping potential is:

The Einstein’s photoelectric equation in terms of the stopping potential and the threshold frequency for a given photosensitive material is

How can you plot the graph between frequency of incident radiation for different metals.

Variaion of photoelectric current with anode potential is correctly represented as .

Photoelectric current $\left({\mathrm{I}}_{\mathrm{P}}\right)$ vs Intensity $\left(\mathrm{I}\right)$ of incident radiation graph is correctly represented by $\left({\mathrm{I}}_{\mathrm{P}} \mathrm{vs} \mathrm{I}\right)$

What is photoelectric effect?

Which type of metals show the photoelectric effect with visible light$?$

Which type of plate, Hallwachs used in his experiment $?$ 

Explain what is Lenard's observation.

Monochromatic light is incident on a metal surface and electrons are released. The intensity of the incident light is increased. What changes, if any, occur in the rate of emission of electrons and the kinetic energy of the emitted electrons?

Light from a bulb is falling on a wooden table but no photo electrons are emitted as

A light of frequency $2 \mathrm{MHz}$ is projected on a material with threshold frequency $1000 \mathrm{MHz}$, the photoelectrons get emitted?

The work function of photoelectric material is $3.3 \text{eV.}$ The threshold frequency for such material will be

Work function of metal A is equal to the ionization energy of hydrogen atom in first excited state. Work function of metal B is equal to the ionization energy of He+ ion in second orbit. Photons of same energy E are incident on both A and B. Maximum kinetic energy of photoelectrons emitted from A is twice that of photoelectrons emitted from B.

The difference in maximum kinetic energy of photoelectrons from A and from B

For next two question follow the same

Work function of metal A is equal to the ionization energy of hydrogen atom in first excited state. Work function of metal B is equal to the ionization energy of He+ ion in second orbit. Photons of same energy E are incident on both A and B. Maximum kinetic energy of photoelectrons emitted from A is twice that of photoelectrons emitted from B.

 Value of E ( in eV) is

What is the effect of intensity on the stopping potential in photoelectric emission?

Define threshold frequency and photoelectric work function.