Questions

If the momentum of electron is changed by P, then the de-Broglie wavelength

If the momentum of electron is changed by P, then the de-Broglie wavelength associated with it changes by 0.5%. The…

When light of wavelength 300 nm falls on a photoelectric emitter,

When light of wavelength 300 nm falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, light of wavelength…

Monochromatic radiation emitted when electron on hydrogen atom

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a phototsensitive material.…

The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.

The work function for metals A,B abd C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein's…

The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.

The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz. If light of frequency 8.2 x 10¹⁴ Hz…

In photoelectric emission process from a metal of work function

In photoelectric emission process from a metal of work function, 1.8 eV, the kinetic energy of most energetic electrons is…

Electrons used in an electron microscope are accelerated by a voltage of 25 kV

Electrons used in an electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased associated…

Light of two different frequencies whose photons have energies 1eV

Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively illuminate a metallic surface whose…

In the Davisson and Germer experiment, the velocity of electrons emitted from the

In the Davisson and Germer experiment, the velocity of electrons emitted from the electron gun can be increased by Options…

The work function of a substance is 4.0 eV. The longest wavelength of light

The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from…