25 JEE Main 2023 Dual Nature of Matter previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2023 previous-year questions from the Dual Nature of Matter chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Dual Nature of Matter chapter hub.
If the two metals A and B are exposed to radiation of wavelength 350   nm . The work functions of metals A and B a…
Given below are two statements : Statement I : Stopping potential in photoelectric effect does not depend on the power…
A small object at rest, absorbs a light pulse of power 20   mW and duration 300   ns . Assuming speed of ligh…
The de Broglie wavelength of a molecule in a gas at room temperature 300   K is λ 1 . If the temperature of t…
The de Broglie wavelength of an electron having kinetic energy E is λ . If the kinetic energy of electron becomes…
A point source of light is placed at the centre of curvature of a hemispherical surface. The source emits a power of 24…
An electron accelerated through a potential difference V 1 has a de-Broglie wavelength of λ . When the potential i…
The threshold frequency of metal is f 0 . When the light of frequency 2 f 0 is incident on the metal plate, the maximum…
A proton and an α -particle are accelerated from rest by 2   V and 4   V potentials, respectively. The r…
Proton ( P ) and electron ( e ) will have same de-Broglie wavelength when the ratio of their momentum is (assume, m p =…
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