Dual Nature of Radiation and Matter

JEE Main · Physics · 8 past questions

These are the board's own papers. 162 more board questions reprinted in the books we use in class are for signed-in students: sign in.

Q1 2026 2 Apr Shift 1

For a certain metal, when monochromatic light of wavelength $\lambda$ is incident, the stopping potential for…
Q2 2026 4 Apr Shift 2

The de Broglie wavelength associated with an electron accelerated through a potential difference V is…
Q3 2026 5 Apr Shift 1

An electron of mass $m$ is moving in an electric field $\vec{E} = -2E_0\hat{i}$ ($E_0$ = constant > 0), with…
Q4 2026 5 Apr Shift 1

Light source having wavelength 331 nm is used to generate photo-electrons whose stopping potential is 0.2 V.…
Q5 2026 5 Apr Shift 2

An electron is travelling with a velocity $v$ in free space and when it enters a medium, its velocity is…
Q6 2026 6 Apr Shift 2

The de Broglie wavelength for an electron accelerated through the potential difference of V1 volt is λ1. When…
Q7 2026 8 Apr Shift 2

A monochromatic source of light operating at 15 kW emits $2.5 \times 10^{22}$ photons/s. The region of an…
Q8 2026 8 Apr Shift 2

K1 and K2 be the maximum kinetic energies of photoelectrons emitted from a surface of a given material for…