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A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photocurrent(i) with distance (d) of the source for emitter? 1) a 2) b 3) c 4) d Correct ans is option 4 Please explain how

A point source of light is used in an experiment on photoelectric effect. Which of the following curves best represents the variation of photocurrent(i) with distance (d) of the source for emitter?
1) a     2) b     3) c      4) d
 
Correct ans is option 4
Please explain how

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Grade:12th pass

2 Answers

Arun
25758 Points
3 years ago
Dear student
 
I is proportional to 1/d2
 
i is proportional to I.
 
hence i is proportional to 1/d2
 
hence option 4 is correct
Shivi .
28 Points
3 years ago
I wanted you to explain how is the  curve d  correct... Iknow  already that I  is  proportional to  1/d 2    .  Please can anyone else provide a better answer by explaining the curve

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