Dual Nature of Radiation PYQs - Last 5 Years
IAT (IISER) / Physics / Modern Physics / 5 recent questions
PhysicsModern Physics2022-2026
Practice 5 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 5 Years Dual Nature of Radiation Questions
Showing 5 of 5 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