the stopping potential of photoelectrons depends on
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The stopping potential V 0A. Depends upon the surface nature of the substanceB. Is independent of the intensity of the incident lightC. Depends upon the intensity of incident lightD. Depends upon the angle of incident light
The stopping potential V 0A. Depends upon the surface nature of the substanceB. Is independent of the intensity of the incident lightC. Depends upon the intensity of incident lightD. Depends upon the angle of incident light
Byju's Answer Standard XII Physics
I vs V - Varying Intensity
The stopping ... Question
The stopping potential
( V 0 ) A
Depends upon the angle of incident light
B
Depends upon the intensity of incident light
C
Depends upon the surface nature of the substance
D
Is independent of the intensity of the incident light
Open in App Solution
The correct option is B Is independent of the intensity of the incident light
Stopping potential depends upon the energy of photon
Suggest Corrections 3
SIMILAR QUESTIONS
Q.Stopping potential for photoelectrons
Does not depend on the frequency of the incident light
Does not depend upon the nature of the cathode material
Q. Assertion : Kinetic energy of photo electrons emitted by a photosensitive surface depends upon the intensity of incident photon.Reason : The ejection of electrons from metallic surface is possible with frequency of incident photon below the threshold frequency.
Q. Which of the following quantity related to a lens depends upon the wavelength or wavelengths of incident light?Q. Assertion :The strength of photoelectric current depends upon the intensity of incident radiation. Reason: A photon of energy E possesses a mass equal toE / c 2
and momentum equal to E/c.
Q. When light of sufficiently high frequency is incident on a metallic surface, electrons are emitted from the metallic surface. This phenomenon is called photoelectric emission. Kinetic energy of the emitted photoelectrons depends on the wavelength of incident light and is independent of the intensity of light. Number of emitted photoelectrons depends on intensity.( h ν − ϕ )
is the maximum kinetic energy of emitted photoelectrons (where
ϕ
is the work function of metallic surface). Reverse effect of photo emission produces X-ray. X-ray is not deflected by electric and magnetic fields. Wavelength of a continuous X-ray depends on potential difference across the tube. Wavelength of characteristic X-ray depends on the atomic number. If potential difference across the tube is increased then:
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I vs V - Varying Intensity
Standard XII Physics
Stopping potential for photoelectrons
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Question
Stopping potential for photoelectrons
ADoes not depend on the frequency of the incident light
BDoes not depend upon the nature of the cathode material
CDepends on both the frequency of the incident light and nature of the cathode material
DDepends upon the intensity of the incident light
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Updated on : 2022-09-05
Solution Verified by Toppr
Correct option is C)
Stopping potential for photoelectrons depends on both the frequency of the incident light and nature of the cathode material.
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8 0 SIMILAR QUESTIONS
Light wavelength 300nm in incident on a photosensitive surface. The stopping potential for emitted photoelectrons is 2.5V. The wavelength of incident light is reduced to 150nm. The stopping potential of emitted photoelectrons is
Medium View solution >
Electrons with energy 5 eV are incident on a cathode C in a photoelectric cell. The maximum kinetic energy of the emitted photoelectrons is 2 eV. When electron of energy 6 eV are incident on C, no photoelectrons will reach the anode A if the stopping potential of A relative to C is
Direction : The question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that describes the two statements.Hard View solution >
Statement 1 : A metallic surface is irradiated by a monochromatic light of frequency v>v
0
(the threshold frequency). The maximum kinetic energy and the stopping potential are K
max and V 0
respectively. If the frequency incident on the surface is doubled, both the K
max and V 0 are also doubled.
Statement 2 : The maximum kinetic energy and the stopping potential of photoelectrons emitted from a surface are linearly dependent on the frequency of incident light.
When a certain surface is illuminated with light of frequency v, the stopping potential for photoelectric current is VMedium View solution > 0
When the same surface is illuminated by light of frequency
2 v
the stopping potential is V
0
/4. The threshold frequency for photoelectric emission is:
Hard View solution >
The curve between the frequency ν and stopping potential V in a photoelectric cell will be
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[Solved] The stopping potential of photoelectrons depends on
The correct answer is option 2) i.e. The frequency of the incident light CONCEPT: Photoelectric effect: The photoelectric effect is a phenomeno
Home Physics Dual Nature: Photon and Matter Waves Photoelectric Effect and Wave Theory of Light
Question
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The stopping potential of photoelectrons depends on
The intensity of incident light
The frequency of the incident light
The charge of electrons
None of the above
Answer (Detailed Solution Below)
Option 2 :
The frequency of the incident light
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Detailed Solution
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The correct answer is option 2) i.e. The frequency of the incident light
CONCEPT:Photoelectric effect: The photoelectric effect is a phenomenon where electrons are ejected from a metal surface when the light of sufficient frequency is incident on it. These ejected electrons are called photoelectrons.
When a photon falls on the metal surface, the photon’s energy is transferred to the electron.
Some part of the energy gets utilized in removing the electron from the metal surface, and the remaining goes into giving kinetic energy for the ejected electron.
Therefore, the total energy of photon = energy utilized to eject an electron + maximum kinetic energy of the electron.
The energy of a photon is given by the equation:
ν E=hν .
Where ν is the frequency of incident light and h is the Planck's constant.
Stopping potential is a measure of the kinetic energy of the electron, which comes from the energy of incident light.
The energy of incident light is directly proportional to its frequency.
Hence, the stopping potential of photoelectrons depends on the frequency of incident light.
Confusion PointsThe intensity of light refers to the number of photons per unit area.
The greater the intensity of light more will be the number of photons, and as a result, more will be the number of ejected photo-electrons. So, intensity gives a measure of the number of emitted electrons and not the energy of emitted electrons.
The charge of an electron is fixed and will not vary.
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