How do you find the mass of a photoelectron?

c) 9.1×10^-31 this is the rest mass of electron. Explanation: A photo electron may have some velocity or we can say some energy associated with it ,therefore it’s mass increases. mr = m0 / sqrt (1 – v2 / c2 ).

What is the maximum kinetic energy of photoelectrons?

The maximum kinetic energy of a photoelectron is given by 𝐸 = ℎ 𝑐 𝜆 − 𝑊 , m a x where ℎ is the Planck constant, 𝑐 is the speed of light, 𝜆 is the wavelength of the incident photon, and 𝑊 is the work function of the metal surface.

Could violet light λ 400 nm eject electrons from a metal by Compton collision explain?

A Compton collision involving violet light could not eject an electron from a metal surface since the kinetic energy Kc transferred to the electron is much too small.

Why is there a maximum kinetic energy in the photoelectric effect?

The two factors affecting maximum kinetic energy of photoelectrons are the frequency of the incident radiation and the material on the surface. As shown in the graph below, electron energy increases with frequency in a simple linear manner above the threshold.

What is charge of photoelectron?

Each particle of light, called a photon, collides with an electron and uses some of its energy to dislodge the electron. The rest of the photon’s energy transfers to the free negative charge, called a photoelectron.

Where is maximum kinetic energy?

The kinetic energy depends on the mass and the velocity of the object. At equilibrium, the kinetic energy will be maximum because velocity is maximum at this point. When the objects move faster than the objects have the highest kinetic energy.

When photons of energy 5 eV fall on a photosensitive surface the maximum KE of the photoelectrons emitted form the surface is 2.5 eV What is the stopping potential?

When photons of energy 5 eV fall on a photosensitive surface, the maximum K.E. of the photoelectrons emitted from the surface is 2.5 eV.

What is the kinetic energy of the recoiling electron?

. In a Compton scattering event, the scattered photon has an energy of 120 keV and the recoiling electron has an energy of 40 keV.

How do you find the angle of electrons in Compton scattering?

To find the electron’s scattering angle, apply momentum conservation in the direction perpendicular to the initial photon direction….Using the Compton Scattering Relationship

1. λ′ is the scattered photon wavelength,
2. λ is the incident photon wavelength,
3. and θ is the angle of the scattered photon.

Can the maximum kinetic energy of photoelectron be larger than the energy of photon which ejected it?

No. Each electron energy possessed by an ejected electron can either be the same or different from the other because when a photon energy is absorbed by an electron, part of the energy is used to overcome the binding energy. The extra energy is the one used to release the electron.