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Photoelectric Effect

The photoelec...

Question

The photoelectric emission from the surface starts only when the light incident upon the surface has certain minimum:

A

Intensity

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B

Wavelength

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C

Frequency

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D

Velocity

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Solution

The correct option is C Frequency
The photoelectric emission from the surface starts only when the frequency of incident radiation is greater than the threshold frequency. Hence incident radiation must have certain minimum frequency for this effect to occur.

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Photoelectric Effect

Standard XI Chemistry

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