Dual Nature of Radiation PYQs - Last 5 Years
JEE Main / Physics / Modern Physics / 109 recent questions
PhysicsModern Physics2022-2026
Practice 109 JEE Main 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 9 of 109 filtered questions.
1Dual Nature Of Radiation
The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength 6630 \(\mathop A\limits^o\) is 0.42 V. If the threshold frequency is x \(\times\) 1013 /s, where x is _________ (nearest integer).
(Given, ...
(Given, ...
INTEGER+4 / -12022
2Dual Nature Of Radiation
A metal surface is illuminated by a radiation of wavelength 4500 \(\mathop A\limits^o\). The ejected photo-electron enters a constant magnetic field of 2 mT making an angle of 90\(^\circ\) with the magnetic field. If it starts revolving in...
MCQ+4 / -12022
3Dual Nature Of Radiation
A parallel beam of light of wavelength \(900 \mathrm{~nm}\) and intensity \(100 \,\mathrm{Wm}^{-2}\) is incident on a surface perpendicular to the beam. The number of photons crossing \(1 \mathrm{~cm}^{2}\) area perpendicular to the beam in...
MCQ+4 / -12022
4Dual Nature Of Radiation
Given below are two statements :
Statement I : Davisson-Germer experiment establishes the wave nature of electrons.
Statement II : If electrons have wave nature, they can interfere and show diffraction.
In the light of the above statements ...
Statement I : Davisson-Germer experiment establishes the wave nature of electrons.
Statement II : If electrons have wave nature, they can interfere and show diffraction.
In the light of the above statements ...
MCQ+4 / -12022
5Dual Nature Of Radiation
A proton, a neutron, an electron and an \(\alpha\) particle have same energy. If \(\lambda\)p, \(\lambda\)n, \(\lambda\)e and \(\lambda\)a are the de Broglie's wavelengths of proton, neutron, electron and \(\alpha\) particle respectively, t...
MCQ+4 / -12022
6Dual Nature Of Radiation
A metal exposed to light of wavelength \(800 \mathrm{~nm}\) and and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy of photo-electron doubles when light of wavelength \(500 \mathrm{~nm}\) is used. The workfunc...
MCQ+4 / -12022
7Dual Nature Of Radiation
The ratio of wavelengths of proton and deuteron accelerated by potential Vp and Vd is 1 : \(\sqrt2\). Then the ratio of Vp to Vd will be :
MCQ+4 / -12022
8Dual Nature Of Radiation
When light of frequency twice the threshold frequency is incident on the metal plate, the maximum velocity of emitted electron is v1. When the frequency of incident radiation is increased to five times the threshold value, the maximum veloc...
INTEGER+4 / -12022
9Dual Nature Of Radiation
The light of two different frequencies whose photons have energies 3.8 eV and 1.4 eV respectively, illuminate a metallic surface whose work function is 0.6 eV successively. The ratio of maximum speeds of emitted electrons for the two freque...
MCQ+4 / -12022