Dual Nature of Radiation PYQs - Last 10 Years
IAT (IISER) / Physics / Modern Physics / 6 recent questions
PhysicsModern Physics2017-2026
Practice 6 IAT (IISER) Physics questions from Dual Nature of Radiation. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 10 Years Dual Nature of Radiation Questions
Showing 6 of 6 filtered questions.
1Dual Nature Of Radiation
Consider normal incidence of a monochromatic beam of photons of power $P$ on a flat surface. Of the incident beam, 10% gets absorbed, 10% gets transmitted, and the rest is reflected by the flat surface. If $c$ is the speed of light, what is...
MCQ+4 / -12026
2Dual Nature Of Radiation
An experimental study of the photoelectric effect involves a metal of work function $\phi_0$. What is the smallest wavelength of the incident photon to photoemit an electron of mass $m$ which has the same de Broglie wavelength as that of th...
MCQ+4 / -12026
3Dual Nature Of Radiation
A particle of mass $m$ and charge $q$ is accelerated through a distance $d_1$ by an electric field $\vec{E}$. Another particle of mass $M$ and charge $q$ is accelerated by the same electric field through a distance $d_2$. Both the particles...
MCQ+4 / -12025
4Dual Nature Of Radiation
Two monochromatic sources emit light at wavelengths $\lambda$ and $\lambda / 2$. The stopping potentials for a photosensitive material using these two sources are found to be 1 V and 3 V , respectively. What is the work function of the mate...
MCQ+4 / -12024
5Dual Nature Of Radiation
The figures in the options show the photocurrent $J$ of a photoelectric material versus the frequency $f$ of an incident light beam. The light beam can have three different intensities $I_1, I_2, I_3$, with $I_3>I_2>$ $I_1$. Which of the op...
MCQ+4 / -12022
6Dual Nature Of Radiation
In the photoelectric effect experiment, the frequency of the incident light is changed from red to blue while keeping the energy per unit area per unit time of the incident radiation fixed. What will happen to the saturation current?
MCQ+4 / -12020