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When yellow light is incident on a surfa...

When yellow light is incident on a surface , no electrons are emitted while green light can emit. If red light is incident on the surface , then

A

No electrons are emitted

B

Photons are emitted

C

Electrons of higher energy are emitted

D

Electrons of lower energy are emitted

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda_(r) gt lambda_(y) gt lambda_(g)` . Here threshold wavelength `lt lambda_(y)`.
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