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A point source of monochomatic light is at a distance of 0.2m from the photoelectric cell,the stopping potential and saturation current are 0.6V and 18mA respectively. If the same source is placed 0.6m away from the photoelectric cell,then, which of the following is correct and why............. 1)stopping potential is 0.2V 2)stopping potential is 0.6V 3)saturation current is 9mA 4)saturation current is 15mA (Pls explain.......)

A point source of monochomatic light is at a distance of 0.2m from the photoelectric cell,the stopping potential and saturation current are 0.6V and 18mA respectively.


If the same source is placed 0.6m away from the photoelectric cell,then,


which of the following is correct and why.............


1)stopping potential is 0.2V


2)stopping potential is 0.6V


3)saturation current is 9mA


4)saturation current is 15mA


(Pls explain.......)

Grade:12

1 Answers

Geoffrey Richards
34 Points
10 years ago

The ans is option(2) bcos as the distance increase the intensity or brightness decreses but the frequency it remains the same ....

Dats y the right ans is option (2) ....

 

btw are u preparing for aieee-2011 .../??

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