The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three…

The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement?

1. Curves $a$ and $b$ represent incident radiations of different frequencies and different intensities
2. Curves $a$ and $b$ represent incident radiations of same frequency but of different intensities
3. Curves $b$ and $c$ represent incident radiations of different frequencies and different intensities
4. Curves $b$ and $c$ represent incident radiations of same frequency having same intensity

Solution

From the two graphs we can conclude that for the graph in question curves $a$ and $b$ represent incident radiations of same frequency but of different intensities.

Asked in: NEET 2009 (Screening)

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