Home Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect The photoelectric threshold wavelength of a …
Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect MCQ (Single Correct)

The photoelectric threshold wavelength of a certain metal is 3000Å. If the radiation of 2000Å is incident on the metal

A
Electrons will be emitted
B
Positrons will be emitted
C
Protons will be emitted
D
Electrons will not be emitted

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Text Solution

Verified by Experts
The correct answer is:
A

The photoelectrons will be emitted because wavelength of incident radiation is less than threshold wavelength ( )

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