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CBSE Class 12 Physics 2017 Outside Delhi Set 3 Paper

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Question : 7 of 8
Marks: +1, -0
The following graph shows the variation of photocurrent for a photosensitive metal :
(a) Identify the variable XX on the horizontal axis.
(b) What does the point AA on the horizontal axis represent?
(c) Draw this graph for three different values of frequencies of incident radiation v1,v2v_1, v_2 and v3(v1>v2>v3)v_3 (v_1>v_2>v_3) for same intensity.
(d) Draw this graph for three different values of intensities of incident radiation I1,I2I_1, I_2 and I3I_3 (I1>I2>I3)(I_1>I_2>I_3) having same frequency.
Solution:  
(a) Identification of XX
(b) Identification of point AA
(c) Graph for three different frequencies
(d) Graph for three different intensities.
(a) XX is collector plate potential.
(b) AA is stopping potential.
(c) Graph for different frequencies
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