Cengage JEE Mains Physics by B.M Sharma
What is the de Broglie wavelength of the wave associated with an electron that has been accelerated through a potential difference of 50.0 V ?
04
Jun
What is the de Broglie wavelength of the wave associated with an electron that has been accelerated through a potential difference of 50.0 V ? What is the de Broglie wavelength of the wave associated with an electron that has been accelerated through a potential difference of 50.0 V? June 4, 2021 Category: Cengage JEE [...]
How many photons of a radiation of wavelength λ=5×10^−7 m must fall per second on a blackened plate in order to produce a force of 6.62×10^−5 N?
04
Jun
How many photons of a radiation of wavelength λ=5×10^−7 m must fall per second on a blackened plate in order to produce a force of 6.62×10^−5 N? How many photons of a radiation of wavelength λ=5×10^−7 m must fall per second on a blackened plate in order to produce a force of 6.62×10^−5 N? June [...]
A monochromatic source of light is placed at a large distance d From a metal surface. Photoelectrons are ejected at rate n, the kinetic energy being E. If the source is brought nearer to distance d/2, the rate and kinetic energy per photoelectron become nearly
04
Jun
A monochromatic source of light is placed at a large distance d From a metal surface. Photoelectrons are ejected at rate n, the kinetic energy being E. If the source is brought nearer to distance d/2, the rate and kinetic energy per photoelectron become nearly A monochromatic source of light is placed at a large [...]
A photon of wavelength 0.1 A is emitted by a helium atom as a consequence of the emission of photon. The KE gained by helium atom is
04
Jun
A photon of wavelength 0.1 A is emitted by a helium atom as a consequence of the emission of photon. The KE gained by helium atom is A photon of wavelength 0.1 A is emitted by a helium atom as a consequence of the emission of photon. The KE gained by helium atom is June [...]
The maximum velocity of electrons emitted from a metal surface is v. What would be the maximum velocity if the frequency of incident light is increased by a factor of 4?
04
Jun
The maximum velocity of electrons emitted from a metal surface is v. What would be the maximum velocity if the frequency of incident light is increased by a factor of 4? The maximum velocity of electrons emitted from a metal surface is v. What would be the maximum velocity if the frequency of incident light [...]
A homogeneous ball (mass=m) of ideal black material at rest is illuminated with a radiation having a set of photons (wavelength=λ), each with the same momentum and the same energy. The rate at which photons fall on the ball is n. the linear acceleration of the ball is
04
Jun
A homogeneous ball (mass=m) of ideal black material at rest is illuminated with a radiation having a set of photons (wavelength=λ), each with the same momentum and the same energy. The rate at which photons fall on the ball is n. the linear acceleration of the ball is A homogeneous ball (mass=m) of ideal black [...]
Figure shows the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. The ratio h/e is.
04
Jun
Figure shows the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. The ratio h/e is. Figure shows the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. The ratio h/e is. June 4, 2021 Category: Cengage [...]
How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm?
04
Jun
How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm? How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm? June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 28 - Dual Nature of Radiation [...]
Work function of nickel is 5.01 eV. When ultraviolet radiation of wavelength 200 A is incident on it, electrons are emitted. What will be the maximum velocity of emitted electrons?
04
Jun
Work function of nickel is 5.01 eV. When ultraviolet radiation of wavelength 200 A is incident on it, electrons are emitted. What will be the maximum velocity of emitted electrons? electrons are emitted. What will be the maximum velocity of emitted electrons? Work function of nickel is 5.01 eV. When ultraviolet radiation of wavelength 200 [...]
The kinetic energy of most energetic electrons emitted from a metallic surface is doubled when the wavelength λ of the incident radiation is changed from 400 nm to 310 nm. The work function of the metal is
04
Jun
The kinetic energy of most energetic electrons emitted from a metallic surface is doubled when the wavelength λ of the incident radiation is changed from 400 nm to 310 nm. The work function of the metal is If a surface has work function of 3.00 eV the longest wavelength of light which will cause the [...]