The de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
The de-Broglie wavelength of an electron moving with a velocity 1.5x10⁸ ms⁻¹ is equal to that of a photon. The…
7 years ago
Dual Nature of Matter and Radiation
Which of the following is or the property of a cathode ray
Which of the following is or the property of a cathode ray Options (a) It casts shadows (b) It produces…
7 years ago
what should be the velocity of an electron so that its momentum becomes equal
what should be the velocity of an electron so that its momentum becomes equal to that of a photon of…
7 years ago
If particles are moving with same velocity, then maximum de Broglie wavelength will
If particles are moving with same velocity, then maximum de Broglie wavelength will be for Options (a) Neutron (b) Proton…
7 years ago
When ultraviolet rays are incident on metal plate, then photoelectric effect
When ultraviolet rays are incident on metal plate, then photoelectric effect does not occur. It occur by the incidence of…
7 years ago
In photoelectric effect, the photoelectric current
In photoelectric effect, the photoelectric current Options (a) depends both on intensity and frequency of incident beam (b) does not…
7 years ago
Maximum kinetic energy of electrons emitted in photoelectric effect increases when
Maximum kinetic energy of electrons emitted in photoelectric effect increases when Options (a) intensity of light is increased (b) light…
7 years ago
Energy of photon whose frequency is 10¹² MHz will be
Energy of photon whose frequency is 10¹² MHz will be Options (a) 4.14x10³ KeV (b) 4.14x10² eV (c) 4.14x10³ MeV…
7 years ago
When radiation is incident on a photoelectron emitter,
When radiation is incident on a photoelectron emitter, the stopping potential is found to be 9 volt. If e/m for…
7 years ago
Photocells convert
Photocells convert Options (a) heat energy into electrical energy (b) light energy into mechanical energy (c) thermal energy into mechanical…
7 years ago