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The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photon's energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metal's work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the light's wavelength), the number of electrons picked up by the sensor increases. 
Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?
  • a)
    The point at which the metal has run out of electrons which can be ejected
  • b)
    The point at which the energy of the photons hitting the metal has hit a limit
  • c)
    The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metal
  • d)
    The point at which no more electrons can or will leave the metal
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The photoelectric effect is a phenomenon that has led to many importan...
The correct answer is that it is the point at which the energy of the photons is barely enough to eject electrons. We know this because, as the passage says, decreasing the wavelength (increasing the energy) of the photons does not eject electrons until exactly this point. This implies that this gradual increase in photon energy passed the threshold we are calling the "work function" and led to electrons being ejected.
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The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer?
Question Description
The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? for ACT 2025 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for ACT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for ACT. Download more important topics, notes, lectures and mock test series for ACT Exam by signing up for free.
Here you can find the meaning of The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Based on the information in the passage, the term "work function" can be most accurately described as which of the following?a)The point at which the metal has run out of electrons which can be ejectedb)The point at which the energy of the photons hitting the metal has hit a limitc)The point at which the energy of the photons hitting the metal is barely enough to eject electrons from that metald)The point at which no more electrons can or will leave the metalCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice ACT tests.
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