In photoelectric effect, electrons are ejected from metals if incident light has a certain minimum

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11.Dual Nature of Radiation and matter

easy

In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum

A

Wavelength

B

Frequency

C

Amplitude

D

Angle of incidence

(AIIMS-2006)

Solution

The incident wave must have a certain minimum frequency. This is known as threshold frequency.

Standard 12

Physics

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