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Question

The following graph shows the variation of photocurrent for a photosensitive metal:

(a) Identify the variable X on the horizontal axis.
(b) What does the point A on the horizontal axis represent?
(c) Draw this graph for three different values of frequencies of incident radiation v1,v2, and v3(v1>v2>v3) for same intensity.
(d) Draw this graph for three different values of intensities of incident radiation I1,I2 and I3(I1>I2>I3) having same frequency.
 


Solution

(a) X is anode potential.
(b) As no photocurrent flows for the potential value at A, A represents the stopping potential.
(c)

(d)

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