Photoelectric Effect

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.

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

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

The following graph represents the variation of photo current with anode potential for a metal surface. Here $I_1, I_2$ and $I_3$ represents intensities and ${\gamma }_1,{\gamma }_2,{\gamma }_3$ represents frequency for curves $1, 2$ and $3$ respectively, then

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

In a photoelectric effect experiment, collector plate is placed vertically above the emitter plate. Light is allowed to incident on emitter and saturation photocurrent is recorded. Now parallel electric and magnetic fields are applied vertically downwards between the plates. Then

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

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

In the photoelectric experiment, if we use a monochromatic light, the $I-V$ curve is as shown. If work function of the metal is $2\mathrm{eV},$ estimate the power of light used. (Assume efficiency of photo emission is ${10}^{-3}\%,$ i.e. number of photoelectrons emitted are ${10}^{-3}\%$ of number of photons incident on metal.)

In a photoelectric experiment, the relation between the applied potential difference $V$ and the photoelectric current $I$ was found to be as shown in the graph below. If the work function of the cathode plate is $28.8 \mathrm{eV}$ and $h=6.6\times {10}^{-34} \mathrm{J} \mathrm{s},$ the frequency of incident radiation would be nearly ( in $\mathrm{Hz}$)

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