Question

State the four laws of photoelectric emissions.

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Answer 1

Heyaa folk,

1 ) Photoelectric emission currently is directly proportional to the intensity of incident light.
• It is independent of frequency.

2) The emissions of electrons stops below a certain minimum frequency that is known as threshold frequency.

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- no4 ✯ Brainly Star ✯

Answer 2

Hii there!!!

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The four laws of photoelectric emission are given as :
 
LAW 1 :  For a given metal and frequency, the number of photoelectrons emitted is directly proportional to the intensity of the incident radiation. 
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LAW 2: For a given metal, there exists a certain frequency below which the photoelectric emission does not take place. This frequency is called threshold frequency.
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LAW 3: For a frequency greater than the threshold frequency, the kinetic energy of photoelectrons is dependent upon frequency or wavelength but not on the intensity of light.
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LAW 4: Photoelectric emission is an instantaneous process. The time lag between incidence of radiations and emission of electron is 10^-9 seconds.

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# RUHANIKA