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If the threshold frequency of a metal for photoelectric effect is v0, then which of the following will not happen?
  • a)
    If frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zero
  • b)
    If frequency of incident radiation is v, the kinetic energy of electrons ejected will be hv– hv0
  • c)
    If frequency is kept same at v but intensity is increased, the number of electrons ejected will increase
  • d)
    If frequency of incident radiation is further increased, the number of photo-electrons ejected will increase
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the threshold frequency of a metal for photoelectric effect is v0, ...
A) If the frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zero.

This statement is incorrect. If the frequency of the incident radiation is equal to the threshold frequency (v0), the kinetic energy of the ejected electrons will not be zero. The photoelectric effect occurs when the energy of the incident photons is greater than or equal to the work function of the metal (which is related to the threshold frequency). In this case, if the frequency of the incident radiation is equal to v0, the kinetic energy of the ejected electrons will be equal to the energy of the incident photons, which is given by E = hv, where h is Planck's constant and v is the frequency of the incident radiation.

b) If the frequency of the incident radiation is v, the kinetic energy of the electrons ejected will be hv.

This statement is correct. The kinetic energy of the ejected electrons is directly proportional to the energy of the incident photons, which is given by E = hv, where h is Planck's constant and v is the frequency of the incident radiation. So, if the frequency of the incident radiation is v, the kinetic energy of the ejected electrons will be hv.

Therefore, the correct answer is a) If the frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zero.
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If the threshold frequency of a metal for photoelectric effect is v0, ...
DDD
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If the threshold frequency of a metal for photoelectric effect is v0, then which of the following will not happen?a)If frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zerob)If frequency of incident radiation is v, the kinetic energy of electrons ejected will be hv– hv0c)If frequency is kept same at v but intensity is increased, the number of electrons ejected will increased)If frequency of incident radiation is further increased, the number of photo-electrons ejected will increaseCorrect answer is option 'D'. Can you explain this answer?
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If the threshold frequency of a metal for photoelectric effect is v0, then which of the following will not happen?a)If frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zerob)If frequency of incident radiation is v, the kinetic energy of electrons ejected will be hv– hv0c)If frequency is kept same at v but intensity is increased, the number of electrons ejected will increased)If frequency of incident radiation is further increased, the number of photo-electrons ejected will increaseCorrect answer is option 'D'. 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 If the threshold frequency of a metal for photoelectric effect is v0, then which of the following will not happen?a)If frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zerob)If frequency of incident radiation is v, the kinetic energy of electrons ejected will be hv– hv0c)If frequency is kept same at v but intensity is increased, the number of electrons ejected will increased)If frequency of incident radiation is further increased, the number of photo-electrons ejected will increaseCorrect answer is option 'D'. 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 If the threshold frequency of a metal for photoelectric effect is v0, then which of the following will not happen?a)If frequency of the incident radiation is v0, the kinetic energy of the electrons ejected is zerob)If frequency of incident radiation is v, the kinetic energy of electrons ejected will be hv– hv0c)If frequency is kept same at v but intensity is increased, the number of electrons ejected will increased)If frequency of incident radiation is further increased, the number of photo-electrons ejected will increaseCorrect answer is option 'D'. Can you explain this answer?.
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