No, not all electrons that absorb a photon are ejected as photoelectrons. Only electrons that gain energy equal to or greater than the material's work function can escape. Others lose energy through collisions or remain bound within the material. For more visit here: https://www.tiwariacademy.com/ncRead more
No, not all electrons that absorb a photon are ejected as photoelectrons. Only electrons that gain energy equal to or greater than the material’s work function can escape. Others lose energy through collisions or remain bound within the material.
(i) The stopping potential does not depend on the intensity of the incident radiation, as intensity affects the number of photoelectrons, not their energy. (ii) The stopping potential depends on the frequency of the incident radiation because higher frequency photons impart more energy to the emitteRead more
(i) The stopping potential does not depend on the intensity of the incident radiation, as intensity affects the number of photoelectrons, not their energy.
(ii) The stopping potential depends on the frequency of the incident radiation because higher frequency photons impart more energy to the emitted electrons, requiring greater potential to stop them.
The maximum kinetic energy of photoelectrons is given by K.E. = e × V, where e is the electron charge (1.6 × 10⁻¹⁹ C) and V is the stopping potential. Thus, K.E. = 1.6 × 10⁻¹⁹ × 1.5 = 2.4 × 10⁻¹⁹ J. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
The maximum kinetic energy of photoelectrons is given by K.E. = e × V, where e is the electron charge (1.6 × 10⁻¹⁹ C) and V is the stopping potential. Thus, K.E. = 1.6 × 10⁻¹⁹ × 1.5 = 2.4 × 10⁻¹⁹ J.
(1) Electrons will not be emitted with red light because its frequency is lower than green and yellow light, providing insufficient energy. (2) Electrons will be emitted with blue light as its frequency is higher than green light, exceeding the threshold frequency. For more visit here: https://www.tRead more
(1) Electrons will not be emitted with red light because its frequency is lower than green and yellow light, providing insufficient energy.
(2) Electrons will be emitted with blue light as its frequency is higher than green light, exceeding the threshold frequency.
Do all the electrons that absorb a photon come out as photoelectrons?
No, not all electrons that absorb a photon are ejected as photoelectrons. Only electrons that gain energy equal to or greater than the material's work function can escape. Others lose energy through collisions or remain bound within the material. For more visit here: https://www.tiwariacademy.com/ncRead more
No, not all electrons that absorb a photon are ejected as photoelectrons. Only electrons that gain energy equal to or greater than the material’s work function can escape. Others lose energy through collisions or remain bound within the material.
For more visit here:
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Does the ‘stopping potential’ in photoelectric emission depend upon (i) the intensity of the incident radiation in a photocell? (ii) the frequency of the incident radiation?
(i) The stopping potential does not depend on the intensity of the incident radiation, as intensity affects the number of photoelectrons, not their energy. (ii) The stopping potential depends on the frequency of the incident radiation because higher frequency photons impart more energy to the emitteRead more
(i) The stopping potential does not depend on the intensity of the incident radiation, as intensity affects the number of photoelectrons, not their energy.
(ii) The stopping potential depends on the frequency of the incident radiation because higher frequency photons impart more energy to the emitted electrons, requiring greater potential to stop them.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
The stopping potential in an experiment on photoelectric effect is 1.5 V. What is the maximum kinetic energy of the photoelectrons emitted?
The maximum kinetic energy of photoelectrons is given by K.E. = e × V, where e is the electron charge (1.6 × 10⁻¹⁹ C) and V is the stopping potential. Thus, K.E. = 1.6 × 10⁻¹⁹ × 1.5 = 2.4 × 10⁻¹⁹ J. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
The maximum kinetic energy of photoelectrons is given by K.E. = e × V, where e is the electron charge (1.6 × 10⁻¹⁹ C) and V is the stopping potential. Thus, K.E. = 1.6 × 10⁻¹⁹ × 1.5 = 2.4 × 10⁻¹⁹ J.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted when the surface is illuminated by (1) red light, and (ii) blue light?
(1) Electrons will not be emitted with red light because its frequency is lower than green and yellow light, providing insufficient energy. (2) Electrons will be emitted with blue light as its frequency is higher than green light, exceeding the threshold frequency. For more visit here: https://www.tRead more
(1) Electrons will not be emitted with red light because its frequency is lower than green and yellow light, providing insufficient energy.
(2) Electrons will be emitted with blue light as its frequency is higher than green light, exceeding the threshold frequency.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/