A long solenoid has 500 turns. When a current of 2 ampere is passed through it
A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux…
8 years ago
Physics
Which phenomenon best supports the theory that matter has a wave nature?
Which phenomenon best supports the theory that matter has a wave nature? Options (a) Electron momentum (b) Electron diffraction (c)…
8 years ago
The threshold wavelength for photoelectric emission from a material is 4800 Å.
The threshold wavelength for photoelectric emission from a material is 4800 Å. Photoelectrons will be emitted from the material, when…
8 years ago
If an electron and a proton have the same de-Broglie wavelength, then the kinetic
If an electron and a proton have the same de-Broglie wavelength, then the kinetic energy of the electron is Options…
8 years ago
The maximum kinetic energy of emitted electrons in a photoelectric effect
The maximum kinetic energy of emitted electrons in a photoelectric effect does not depend upon Options (a) Intensity (b) Work…
8 years ago
When a piece of metal is illuminated by a monochromatic light of wavelength λ,
When a piece of metal is illuminated by a monochromatic light of wavelength λ, then stopping potential is 3Vs. When…
8 years ago
In the phenomenon of electric discharge through gases at low pressure,
In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a…
8 years ago
Photon of frequency ν has a momentum associated with it. If c is the velocity
Photon of frequency ν has a momentum associated with it. If c is the velocity of light, the momentum is…
8 years ago
What is the energy of He⁺ electron in first orbit?
What is the energy of He⁺ electron in first orbit? Options (a) (40.8 eV) (b) (-52.2 eV) (c) (-54.4 eV)…
8 years ago
If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
If h is Planck's constant, the momentum of a photon of wavelength 0.01 Å is Options (a) 10⁻² h (b)…
8 years ago