Dual Nature of Matter and Radiation Archives - Page 4 of 15

For photoelectric emission from certain metal the cut-off frequency is v. If radiation of frequency 2v impinges on the metal…

7 years ago

Two radiations of photons energies 1 eV and 2.5 eV, successively illuminate a photosensitive metallic surface of work function 0.5…

7 years ago

Maximum velocity of the photoelectrons emitted by a metal surface is 1.2x10⁶ ms⁻¹. Assuming the specific charge of the electron…

7 years ago

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

7 years ago

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

7 years ago

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

7 years ago

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

7 years ago

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

7 years ago

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

7 years ago

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

7 years ago