The number of photons of wavelength of 540 nm emitted per second by an electric bulb
The number of photons of wavelength of 540 nm emitted per second by an electric bulb of power 100 W…
7 years ago
Dual Nature of Matter and Radiation
Maximum velocity of the photoelectron emitted by a metal is 1.8×10⁶ ms⁻¹.
Maximum velocity of the photoelectron emitted by a metal is 1.8x10⁶ ms⁻¹. Take the value of specific charge of the…
7 years ago
The additional energy that should be given to an electron to reduce its de-Broglie
The additional energy that should be given to an electron to reduce its de-Broglie wavelength from 1nm to 0.5nm is…
7 years ago
The Davisson- Germer experiment is the direct evidence of
The Davisson- Germer experiment is the direct evidence of Options (a) particle nature of electrons (b) wave nature of electrons…
7 years ago
Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons
Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons on maximum kinetic energy 4.0eV. The…
7 years ago
The speed of an electron having a wavelength of 10⁻¹⁰ m is
The speed of an electron having a wavelength of 10⁻¹⁰ m is Options (a) 6.26x10⁶ m/s (b) 5.25 x10⁶ m/s…
7 years ago
Einstein’s photoelectric equation is
Einstein's photoelectric equation is Options (a) Emax=hν-φ (b) E=mc² (c) E²=p²c²+m₀²c⁴ (d) E=(1/2)mv² Correct Answer: Emax=hν-φExplanation:No explanation available. Be the…
7 years ago
The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function of the metal is approximately…
7 years ago
The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon.
The de-Broglie wavelength of an electron is the same as that of a 50 KeV X-ray photon. The ratio of…
7 years ago
If the wavelength of incident light falling on a photosensitive material decreases,
If the wavelength of incident light falling on a photosensitive material decreases, then Options (a) photoelectric current increases (b) stopping…
7 years ago