JEE Main 202523 Jan, Morning shift

Physics 18Chemistry 24

Physics

Q26A light hollow cube of side length 10 cm and mass 10 g, is floating in water. It is pushed down and released to execute simple harmonic oscillations. The time…Oscillations and Waves
Q27Consider a circular disc of radius 20 cm with centre located at the origin. A circular hole of radius 5 cm is cut from this disc in such a way that the edge…Rotational Motion
Q29Given below are two statements: Statement I: The hot water flows faster than cold water Statement II: Soap water has higher surface tension as compared to…Properties of Solids and Liquids
Q30A radioactive nucleus n₂ has 3 times the decay constant as compared to the decay constant of another radioactive nucleus n₁. If initial number of both nuclei…Atoms and Nuclei
Q31What is the lateral shift of a ray refracted through a parallel-sided glass slab of thickness 'h' in terms of the angle of incidence 'i' and angle of…Optics
Q33A solid sphere of mass 'm' and radius 'r' is allowed to roll without slipping from the highest point of an inclined plane of length 'L' and makes an angle 30°…Rotational Motion
Q34Given a thin convex lens (refractive index μ₂), kept in a liquid (refractive index μ₁, μ₁<μ₂) having radii of curvatures |R₁| and |R₂|. Its second surface is…Optics
Q35The position of a particle moving on x-axis is given by x(t)=A sin t+B cos ² t+Ct²+D, where t is time. The dimension of ABC/D isUnits and Measurements
Q36A gun fires a lead bullet of temperature 300 K into a wooden block. The bullet having melting temperature of 600 K penetrates into the block and melts down…Thermodynamics
Q37Match the LIST-I with LIST-II. LIST-I: A. Pressure varies inversely with volume of an ideal gas. B. Heat absorbed goes partly to increase internal energy and…Thermodynamics
Q38The electric field of an electromagnetic wave in free space is E=57 cos [7.5×10⁶t-5×10⁻³(3x+4y)](4 i-3 j) N/C. The associated magnetic field in Tesla isElectromagnetic Waves
Q40The electric flux is φ=ασ+βλ where λ and σ are linear and surface charge density, respectively. ((α)/(β)) representsUnits and Measurements
Q41Regarding self-inductance: A. The self-inductance of the coil depends on its geometry. B. Self-inductance does not depend on the permeability of the medium…Electromagnetic Induction and Alternating Currents
Q42A sub-atomic particle of mass 10⁻³⁰ kg is moving with a velocity 2.21×10⁶ m/s. Under the matter wave consideration, the particle will behave closely like _ _…Dual Nature of Matter and Radiation
Q43A spherical surface of radius of curvature R, separates air from glass (refractive index = 1.5). The centre of curvature is in the glass medium. A point…Optics
Q45Consider a moving coil galvanometer (MCG): A. The torsional constant in moving coil galvanometer has dimentions [ ML²T⁻² ] B. Increasing the current…Magnetic Effects of Current and Magnetism
Q47Two particles are located at equal distance from origin. The position vectors of those are represented by A=2 i+3n j+2 k and B=2 i-2 j+4p k, respectively. If…Kinematics
Q48An ideal gas initially at 0° C temperature, is compressed suddenly to one fourth of its volume. If the ratio of specific heat at constant pressure to that at…Thermodynamics