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Mark the incorrect statement regarding the photoelectric effect.
- a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surface
- b)The number of electrons ejected is inversely proportional to the intensity of light
- c)Photoelectric effect is not observed below threshold frequency
- d)The kinetic energy of the electrons increases with increase in frequency of light used
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Mark the incorrect statement regarding the photoelectric effect.a)Ther...
B) the number of electrons ejected is directly proportional to the intensity of light as a certain amount threshold frequency is required for the photoelectric effect,,,a light with more intesity will contain mor threshold frequency than a low intensity light so the number of electrons ejected will depend upon the intensity of light,,,
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Mark the incorrect statement regarding the photoelectric effect.a)Ther...
The incorrect statement regarding the photoelectric effect is option 'B': The number of electrons ejected is inversely proportional to the intensity of light.
Explanation:
The photoelectric effect refers to the phenomenon where electrons are ejected from a metal surface when it is exposed to light of a certain frequency or higher. This effect was first explained by Albert Einstein in 1905 and is a crucial aspect of understanding the behavior of light and matter.
Here is a detailed explanation of the correct and incorrect statements regarding the photoelectric effect:
a) There is no time lag between the striking of light beam and the ejection of electrons from the metal surface:
This statement is correct. According to the photoelectric effect, when light of a certain frequency, known as the threshold frequency, strikes a metal surface, electrons are immediately emitted. There is no time delay observed between the arrival of light and the ejection of electrons.
b) The number of electrons ejected is inversely proportional to the intensity of light:
This statement is incorrect. The number of electrons ejected from the metal surface is not directly related to the intensity of light, but rather to its frequency. The intensity of light refers to the amount of energy carried by the light wave per unit area, while the frequency refers to the number of wave oscillations per unit time. The number of electrons ejected depends on the energy of individual photons, which is determined by the frequency of light, not its intensity.
c) Photoelectric effect is not observed below the threshold frequency:
This statement is correct. The photoelectric effect is only observed when the frequency of the incident light is equal to or greater than the threshold frequency of the metal. Below the threshold frequency, no electrons are emitted, regardless of the intensity of the light.
d) The kinetic energy of the electrons increases with an increase in the frequency of light used:
This statement is correct. According to the photoelectric effect, the kinetic energy of the emitted electrons increases with an increase in the frequency of light used. This is because higher frequency light carries higher energy photons, which in turn transfer more energy to the electrons upon collision, resulting in higher kinetic energy.
In conclusion, option 'B' is the incorrect statement regarding the photoelectric effect. The number of electrons ejected is not inversely proportional to the intensity of light but rather depends on the frequency of the incident light.
Explanation:
The photoelectric effect refers to the phenomenon where electrons are ejected from a metal surface when it is exposed to light of a certain frequency or higher. This effect was first explained by Albert Einstein in 1905 and is a crucial aspect of understanding the behavior of light and matter.
Here is a detailed explanation of the correct and incorrect statements regarding the photoelectric effect:
a) There is no time lag between the striking of light beam and the ejection of electrons from the metal surface:
This statement is correct. According to the photoelectric effect, when light of a certain frequency, known as the threshold frequency, strikes a metal surface, electrons are immediately emitted. There is no time delay observed between the arrival of light and the ejection of electrons.
b) The number of electrons ejected is inversely proportional to the intensity of light:
This statement is incorrect. The number of electrons ejected from the metal surface is not directly related to the intensity of light, but rather to its frequency. The intensity of light refers to the amount of energy carried by the light wave per unit area, while the frequency refers to the number of wave oscillations per unit time. The number of electrons ejected depends on the energy of individual photons, which is determined by the frequency of light, not its intensity.
c) Photoelectric effect is not observed below the threshold frequency:
This statement is correct. The photoelectric effect is only observed when the frequency of the incident light is equal to or greater than the threshold frequency of the metal. Below the threshold frequency, no electrons are emitted, regardless of the intensity of the light.
d) The kinetic energy of the electrons increases with an increase in the frequency of light used:
This statement is correct. According to the photoelectric effect, the kinetic energy of the emitted electrons increases with an increase in the frequency of light used. This is because higher frequency light carries higher energy photons, which in turn transfer more energy to the electrons upon collision, resulting in higher kinetic energy.
In conclusion, option 'B' is the incorrect statement regarding the photoelectric effect. The number of electrons ejected is not inversely proportional to the intensity of light but rather depends on the frequency of the incident light.
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Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer?.
Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Mark the incorrect statement regarding the photoelectric effect.a)There is no time lag between the striking of light beam and the ejection of electrons from the metal surfaceb)The number of electrons ejected is inversely proportional to the intensity of lightc)Photoelectric effect is not observed below threshold frequencyd)The kinetic energy of the electrons increases with increase in frequency of light usedCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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