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When photon of wavelength lambda(1) are ...

When photon of wavelength `lambda_(1)` are incident on an isolated shere supended by an insulated , the corresponding stopping potential is found to be `V`. When photon of wavelength `lambda_(2)` are used , the orresponding stopping potential was thrice the above value. If light of wavelength `lambda_(3)` is used , carculate the stopping potential for this case.

A

`(hc)/(e ) [ (1)/(lamda_3) + (1)/(lamda_2) - (1)/(lamda_1)]`

B

`(hc)/(e ) [ (1)/(lamda_3) + (1)/(2lamda_2) - (1)/(lamda_1)]`

C

`(hc)/(e ) [(1)/(lamda_3) - (3)/(2lamda_2) + (1)/(2lamda_1)]`

D

`(hc)/(e ) [ (1)/(lamda_3) + (1)/(2lamda_2) - (3)/(2lamda_1)]`

Text Solution

Verified by Experts

The correct Answer is:
C
`(hc)/(e ) [(1)/(lamda_3) - (3)/(2lamda_2) + (1)/(2lamda_1)]`
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Knowledge Check

  • When light of wavelength lambda is incident on photosensitive surface, the stopping potential is V. When light of wavelength 3lambda is incident on same surface, the stopping potential is V/6 Thereshould wave length for the surface is

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