JEE Main 202522 Jan, Morning shift

Physics 14Chemistry 24

Physics

Q27An amount of ice of mass 10⁻³ kg and temperature -10° C is transformed to vapour of temperature 110° C by applying heat. The total amount of work required for…Thermodynamics
Q29A parallel-plate capacitor of capacitance 40 μ F is connected to a 100 V power supply. Now the intermediate space between the plates is filled with a…Electrostatics
Q31Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): If Young's double slit experiment is…Optics
Q32If B is magnetic field and μ₀ is permeability of free space, then the dimensions of (B/μ₀) isUnits and Measurements
Q34The work functions of cesium (Cs) and lithium (Li) metals are 1.9 eV and 2.5 eV, respectively. If we incident a light of wavelength 550 nm on these two metal…Dual Nature of Matter and Radiation
Q35An electron is made to enter symmetrically between two parallel and equally but oppositely charged metal plates, each of 10 cm length. The electron emerges…Electrostatics
Q39Given below are two statements: Statement-I: The equivalent emf of two nonideal batteries connected in parallel is smaller than either of the two emfs…Current Electricity
Q41A closed organ and an open organ tube are filled by two different gases having same bulk modulus but different densities ρ₁ and ρ₂, respectively. The…Oscillations and Waves
Q42Two spherical bodies of same materials having radii 0.2 m and 0.8 m are placed in same atmosphere. The temperature of the smaller body is 800 K and…Properties of Solids and Liquids
Q45Given is a thin convex lens of glass (refractive index μ) and each side having radius of curvature R. One side is polished for complete reflection. At what…Optics
Q46The driver sitting inside a parked car is watching vehicles approaching from behind with the help of his side view mirror, which is a convex mirror with…Optics
Q47Two soap bubbles of radius 2 cm and 4 cm, respectively, are in contact with each other. The radius of curvature of the common surface, in cm, is _ _ _.Properties of Solids and Liquids
Q48A particle is projected at an angle of 30° from horizontal at a speed of 60 m/s. The height traversed by the particle in the first second is h₀ and height…Kinematics
Q49The position vectors of two 1 kg particles, (A) and (B), are given by r A =(α₁t² i+α₂t j+α₃t k) m and r B =(β₁t i+β₂t² j+β₃t k) m, respectively; (α₁=1 m/s ²…Rotational Motion