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Threshold wavelength of certain metal is...

Threshold wavelength of certain metal is `lamda_0` A radiation of wavelength `lamdaltlamda_0` is incident on the plate. Then, choose the correct statement from the following.

A

Initially electrons will come out from the plate

B

The ejected electrons experience retarding force due to development of positive charges on the plate

C

After some time, ejection of electrons stops

D

None of the above

Text Solution

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The correct Answer is:
A, B
For photoemission `lamdaltlamda_0`
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