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The graph between the stopping potential...

The graph between the stopping potential `(V_(0)) and ((1)/(lambda)) ` is shown in the figure `phi_(1) , phi_(2) and phi_(3)` are work function , which of the following is /are correct

A

`phi_1 : phi_2 : phi_3 = 1:2:4`

B

`phi_1 : phi_2 : phi_3 = 4:2:1`

C

`tan theta prop ` hc/e where `theta` is the slope

D

ultraviolet light can be used to ejected photoelectrons from metal 2 metal 3 only .

Text Solution

Verified by Experts

The correct Answer is:
A, C
For photoelectric effect , we can write the following equation:
`(hc)/lamda=phi+eV_0`
Hence stopping potential `(V_0)` is given by
`V_0=(hc)/(elamda)-phi/e`
We can see that options (a) and (a) and (c) correct.
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