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
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
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Modern Physics in other years
More NEET UG Modern Physics questions
De-Broglie wavelength of an electron orbiting in the $n=2$ state of hydrogen atom is close to (Given Bohr radius $=0.052 \mathrm{~nm}$ )
2025medium
Which of the following options represent the variation of photoelectric current with property of light shown on the x -axis? 
2025easy
The maximum kinetic energy of photoelectrons from a surface with work function φ = 2 eV when light of λ = 4000 Å falls on it is (hc = 12400 eV·Å):
2025easy
A full wave rectifier circuit with diodes $\left(D_1\right)$ and $\left(D_2\right)$ is shown in the figure. If input supply voltage $V_{\text {in }}=220 \sin (100 \pi t)$ volt, then at $t=15 \mathrm{msec}$ 
2025medium
A particle of mass $m$ is moving around the origin with a constant force $F$ pulling it towards the origin. If Bohr model is used to describe its motion, the radius $r$ of the $n^{\text {th }}$ orbit and the particle's speed $v$ in the orbit depend on $n$ as
2025medium
Other Physics topics for NEET UG
Keep practicing Modern Physics
Work through every NEET UG Modern Physics PYQ, year by year.