Free physics question bank
JEE Mains 2025 4 April Evening Shift physics questions with solutions
Browse JEE Mains 2025 4 April Evening Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 25 questions
- NumericmediumWave Optics
In a Young's double-slit experiment, the slit separation is 1.5 mm. Twenty interference maxima are contained within the central maximum of the single-slit diffraction envelope. If the width of each slit is x×10⁻³ cm, find x.
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQmediumThermodynamics
Two vessels contain the same ideal gas. The larger vessel has twice the volume of the smaller one and contains gas at 8 kPa and 1000 K. The smaller vessel contains gas at 7 kPa and 500 K. The vessels are connected and both are maintained at 600 K. The final common pressure is:
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQeasyNuclear physics
A radioactive nuclide P decays into Q, and Q subsequently decays into a stable nuclide R. Which graph in the original figure correctly represents the time dependence of the amounts of P, Q and R?
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQeasyAtomic Structure and X-rays
Consider the statements: S1: The dimensions of Planck's constant and angular momentum are the same. S2: In Bohr's model, an electron revolves only in those orbits for which its angular momentum is an integral multiple of Planck's constant h. Choose the correct answer.
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQmediumCapacitor
Three capacitors C₁ = C₂ = C₃ = 5 μF are connected as shown in the original figure. The space between the plates of C₁ is filled with a dielectric of dielectric constant K = 4. The effective capacitance between A and B is:
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQmediumKinematics Part-1 (one dimension)
For the displacement-versus-time graph shown in the original figure, consider: A) average velocity from 0 to 3 s is 10 m/s; B) average velocity from 3 to 5 s is 0 m/s; C) instantaneous velocity at t = 2 s is 5 m/s; D) average velocity from 5 to 7 s equals instantaneous velocity at t = 6.5 s; E) average velocity from 0 to 9 s is zero. Choose the correct set.
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - IntegermediumElectromagnetic wave
An optical medium has relative permeability μᵣ = 10/π and relative permittivity εᵣ = 1/0.0885. The speed of light in vacuum is greater than the speed in this medium by how many times?
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQmediumGeometrical optics
An object is placed 30 cm in front of a convex mirror of focal length 30 cm. A plane mirror is placed between the object and convex mirror so that the images formed by the two mirrors coincide. The distance between the two mirrors is:
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - NumericmediumElectrostatic
A particle of charge 1.6 μC and mass 16 μg is fired perpendicular to a uniform magnetic field of magnitude 6.28 T. Find the time in seconds taken by the particle to return to its original position for the first time.
JEE Mains 2025 4 April Evening Shift
Open question & full solution → - MCQeasyWave Optics
Two polarisers P₁ and P₂ are arranged so that no light is transmitted through them. A third polariser P₃ is inserted between P₁ and P₂. For maximum transmitted intensity through the three polarisers, the angle between P₂ and P₃ is:
Options
JEE Mains 2025 4 April Evening Shift
Open question & full solution →