Dual Nature of Matter and Radiation

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…

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…

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…

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…

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…

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…

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…

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…

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…

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…