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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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.
- 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 energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of two
- 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?
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Explanation:
Introduction:
The photoelectric effect is the phenomenon in which electrons are emitted from a material when light of certain frequency and intensity falls on its surface. The maximum kinetic energy of the emitted electrons depends on the frequency and intensity of the incident light. In this question, we are asked to determine the effect of increasing the frequency and intensity of the incident light on the maximum kinetic energy of the photoelectrons and the photoelectric current produced.
Effect of increasing the frequency:
When the frequency of the incident light is increased, the energy of each photon of light also increases. According to the photoelectric effect, electrons can only be emitted from the material if the energy of the incident photons is greater than the work function of the material. The work function is the minimum energy required to remove an electron from the material. Therefore, increasing the frequency of the incident light increases the energy of the photons and hence the maximum kinetic energy of the emitted electrons.
Effect of increasing the intensity:
Increasing the intensity of the incident light means that more photons are incident on the material per unit time. The number of photons incident per unit time is directly proportional to the intensity of the light. Therefore, increasing the intensity of the light increases the number of photons incident on the material, which in turn increases the number of photoelectrons emitted per unit time. This leads to an increase in the photoelectric current.
Combined effect:
When both the frequency and intensity of the incident light are increased by a factor of two, the maximum kinetic energy of the emitted electrons is increased by a factor greater than two. This is because both the frequency and intensity contribute to the energy of the incident photons. Therefore, the total energy of the incident photons is increased by a factor greater than two, leading to an increase in the maximum kinetic energy of the photoelectrons.
At the same time, the photoelectric current is also increased by a factor of two because the increased intensity of the light leads to a greater number of photoelectrons being emitted per unit time.
Therefore, the correct answer is option C: Increase the maximum energy of the photoelectrons by a factor greater than two, and the photoelectric current by a factor of two.
Introduction:
The photoelectric effect is the phenomenon in which electrons are emitted from a material when light of certain frequency and intensity falls on its surface. The maximum kinetic energy of the emitted electrons depends on the frequency and intensity of the incident light. In this question, we are asked to determine the effect of increasing the frequency and intensity of the incident light on the maximum kinetic energy of the photoelectrons and the photoelectric current produced.
Effect of increasing the frequency:
When the frequency of the incident light is increased, the energy of each photon of light also increases. According to the photoelectric effect, electrons can only be emitted from the material if the energy of the incident photons is greater than the work function of the material. The work function is the minimum energy required to remove an electron from the material. Therefore, increasing the frequency of the incident light increases the energy of the photons and hence the maximum kinetic energy of the emitted electrons.
Effect of increasing the intensity:
Increasing the intensity of the incident light means that more photons are incident on the material per unit time. The number of photons incident per unit time is directly proportional to the intensity of the light. Therefore, increasing the intensity of the light increases the number of photons incident on the material, which in turn increases the number of photoelectrons emitted per unit time. This leads to an increase in the photoelectric current.
Combined effect:
When both the frequency and intensity of the incident light are increased by a factor of two, the maximum kinetic energy of the emitted electrons is increased by a factor greater than two. This is because both the frequency and intensity contribute to the energy of the incident photons. Therefore, the total energy of the incident photons is increased by a factor greater than two, leading to an increase in the maximum kinetic energy of the photoelectrons.
At the same time, the photoelectric current is also increased by a factor of two because the increased intensity of the light leads to a greater number of photoelectrons being emitted per unit time.
Therefore, the correct answer is option C: Increase the maximum energy of the photoelectrons by a factor greater than two, and the photoelectric current by a factor of two.
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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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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 kinetic energy of the photoelectrons by a factor of greater than two and will have no effect on the magnitude of photoelectric current produced.b)Increase the maximum kinetic energy of the photo electrons and would increase the photoelectric current by a factor of twoc)Increase the maximum energy of the photoelectrons by a factor greater than two, and photoelectric current by a factor of twod)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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