As a and b have same stopping potential and c has greater stopping potential, then vc>va=vb as b and c have same saturation current and a has lesser value. So Ia<Ib=Ic
The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the…
NEET UG 2009 — Physics Modern Physics
2009mcqhard
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 ? 
Official previous-year question
Held on 30 Apr 2009 · Verified 9 Jul 2026.
Options
- A
Curves (b) and (c) represent incident radiations same frequencies having same intensity.
- B
Curves (a) and (b) represent incident radiations of different frequencies and different intensities
- C
Curves (a) and (b) represent incident radiations of same frequencies but of different intensities
- D
Curves (b) and (c) represent incident radiations of different frequencies and different intensities
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