Home
Class 12
PHYSICS
In a photoelectric effect measurement, t...

In a photoelectric effect measurement, the stopping potential for a given metal is found to be `V_(0)` volt, when radiation of wavelength `lamda_(0)` is used. If radiation of wavelength `2lamda_(0)` is used with the same metal, then the stopping potential (in V) will be

A

`(V_(0))/(2)`

B

`2V_(0)`

C

`V_(0)+(hc)/(2elambda_(0))`

D

`V_(0)-(hc)/(2e lambda_(e))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

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.

In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased :

A light beam containing a number of wavelengths is used in an photoelectric experiment. The stopping potential :

Photoelectrons ar ejected from a surface when light of wavelenght lamda_1=550 nm is incident on it. The stopping potential for such electrons is lamda_(S1)=0.19V . Suppose that radiation of wavelength lamda_2=190nm is incident of the surface. Q. Calculate the stopping potential V_(S2) .

Li^(2+) is initially is ground state. When radiation of wavelength lamda_(0) incident on it, it emits 6 different wavelengths during de excitation find lamda_(0)

Li^(2+) is initially is ground state. When radiation of wavelength lamda_(0) incident on it, it emits 6 different wavelengths during de excitation find lamda_(0)

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.

Five volt of stopping potential is needed for the photoelectrons emitted out of a surface of work function 2.2 eV by the radiation of wavelength

A point source of light is used in a photoelectric effect. If the source is moved farther from the emitted metal, the stopping potential

V_(1) and V_(2) are the stopping potentials for the incident radiations of wave lengths lamda_(1) and lamda_(2) respectively are incident on a metallic surface. If lamda_(1)=3lamda_(2) then