According to the experiment of photoelectric effect, the number of electrons ejected from the metal surface is proportional to the intensity or brightness of light.

True

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False

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Solution

The correct option is A
True

In 1887, Heinrich Rudolf Hertz observed that when a beam of light of suitable wavelength or frequency is allowed to fall on the surface of metal, electrons are ejected from the surface of metal. The experiment further revealed that the number of electrons ejected was proportional to the intensity or brightness of light.

$I n t e n s i t y = A m p l i t u d e^{2}$

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Similar questions

The number of electrons ejected is proportional to the intensity or brightness of light in experiment of photoelectric effect.

Kinetic energy with which the electrons are emitted from the metal surface due to Photoelectric effect is

1) independent of the intensity of illumination

2) independent of the frequency of light

3) inversely proportional to the intensity of illumination

4) directly proportional to the intensity of illumination

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