SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.Which of the following changes occur?
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Rate of electron emission:increase.Energy of electrons:increase.
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Rate of electron emission:decrease.Energy of electrons:no change.
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Rate of electron emission:decrease.Energy of electrons:increase.
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Rate of electron emission:increase.Energy of electrons:no change.
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Explanation:
Detailed explanation-1: -Electrons are released. The intensity of the light is then increased. Which of the following changes occur? Rate of electron emission: increase.
Detailed explanation-2: -Increasing the intensity while keeping frequency fixed, increases the number of photons hitting the metal and hence, it increases the rate at which electrons are emitted. So, the photocurrent increases.
Detailed explanation-3: -When the intensity of the incident photon increases, the number of electrons emitted from the metal surface increases due to which the photoelectric current increases.
There is 1 question to complete.