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The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :
- a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of two
- b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of two
- c)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.
- d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of two
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The frequency and the intensity of a beam of light falling on the surf...
Explanation:
When a beam of light falls on a photoelectric material, it generates photoelectrons. The frequency and intensity of the beam of light have an effect on the maximum kinetic energy of the photoelectrons and the photoelectric current produced.
Effect of increasing frequency and intensity of light on photoelectrons:
- Increasing the frequency and intensity of the beam of light will increase the number of photons falling on the photoelectric material.
- Each photon has a certain amount of energy, which is proportional to its frequency. Therefore, increasing the frequency of the beam of light will increase the energy of the photons.
- The energy of a photon is given by E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon.
- When a photon falls on the photoelectric material, it can transfer its energy to an electron, which can then be emitted as a photoelectron.
- The maximum kinetic energy of the photoelectrons depends on the energy of the photons and the work function of the photoelectric material.
- The work function is the minimum energy required to remove an electron from the photoelectric material.
- If the energy of a photon is greater than the work function, the excess energy is converted into kinetic energy of the photoelectron.
- Therefore, increasing the frequency and intensity of the beam of light will increase the maximum kinetic energy of the photoelectrons.
- However, the increase in kinetic energy will not be proportional to the increase in frequency and intensity of the beam of light. This is because the work function of the photoelectric material is constant.
Effect of increasing frequency and intensity of light on photoelectric current:
- Increasing the frequency and intensity of the beam of light will increase the number of photons falling on the photoelectric material.
- Each photon can generate a photoelectron, which contributes to the photoelectric current.
- Therefore, increasing the frequency and intensity of the beam of light will increase the photoelectric current.
- However, the increase in photoelectric current will not be proportional to the increase in frequency and intensity of the beam of light. This is because the efficiency of photoelectron generation is not constant and depends on the energy of the photons.
Conclusion:
- Increasing the frequency and intensity of a beam of light falling on the surface of photoelectric material will increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of the photoelectric current produced.
- This is because the work function of the photoelectric material is constant and the efficiency of photoelectron generation is not constant and depends on the energy of the photons.
When a beam of light falls on a photoelectric material, it generates photoelectrons. The frequency and intensity of the beam of light have an effect on the maximum kinetic energy of the photoelectrons and the photoelectric current produced.
Effect of increasing frequency and intensity of light on photoelectrons:
- Increasing the frequency and intensity of the beam of light will increase the number of photons falling on the photoelectric material.
- Each photon has a certain amount of energy, which is proportional to its frequency. Therefore, increasing the frequency of the beam of light will increase the energy of the photons.
- The energy of a photon is given by E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon.
- When a photon falls on the photoelectric material, it can transfer its energy to an electron, which can then be emitted as a photoelectron.
- The maximum kinetic energy of the photoelectrons depends on the energy of the photons and the work function of the photoelectric material.
- The work function is the minimum energy required to remove an electron from the photoelectric material.
- If the energy of a photon is greater than the work function, the excess energy is converted into kinetic energy of the photoelectron.
- Therefore, increasing the frequency and intensity of the beam of light will increase the maximum kinetic energy of the photoelectrons.
- However, the increase in kinetic energy will not be proportional to the increase in frequency and intensity of the beam of light. This is because the work function of the photoelectric material is constant.
Effect of increasing frequency and intensity of light on photoelectric current:
- Increasing the frequency and intensity of the beam of light will increase the number of photons falling on the photoelectric material.
- Each photon can generate a photoelectron, which contributes to the photoelectric current.
- Therefore, increasing the frequency and intensity of the beam of light will increase the photoelectric current.
- However, the increase in photoelectric current will not be proportional to the increase in frequency and intensity of the beam of light. This is because the efficiency of photoelectron generation is not constant and depends on the energy of the photons.
Conclusion:
- Increasing the frequency and intensity of a beam of light falling on the surface of photoelectric material will increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of the photoelectric current produced.
- This is because the work function of the photoelectric material is constant and the efficiency of photoelectron generation is not constant and depends on the energy of the photons.
Community Answer
The frequency and the intensity of a beam of light falling on the surf...
KE max=hf-W
f doubles then KE max new>2×KE max old
I saturation is proportional to Intensity/frequency hence no effect on doubling both simultaneously
f doubles then KE max new>2×KE max old
I saturation is proportional to Intensity/frequency hence no effect on doubling both simultaneously
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The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer?
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The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer?.
The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The frequency and the intensity of a beam of light falling on the surface of photoelectric material are increased by a factor of two (Treating efficiency of photoelectron generation as constant). This will :a)Increase the maximum energy of the photoelectrons, as will as photoelectric current by a factor of twob)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.d)Not produce any effect on the kinetic energy of the emitted electrons but will increase the photoelectric current by a factor of twoCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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