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Physics · 2025 · 29 Jan · Shift 2

25 questions from this JEE Main paper
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Physics · 2025 · 29 Jan · Shift 2

25 questions from this JEE Main paper

Center of Mass2 questionsDual Nature of Radiation1 questionsAtoms and Nuclei1 questionsHeat and Thermodynamics4 questionsWork Power and Energy1 questionsElectromagnetic Waves1 questionsGeometrical Optics3 questionsSimple Harmonic Motion1 questionsUnits and Measurements2 questionsMagnetic Properties of Matter1 questionsElectronic Devices1 questionsElectrostatics2 questionsCapacitor2 questionsMotion in A Straight Line1 questionsGravitation1 questionsMagnetics1 questions
  1. Q51.Three equal masses m are kept at vertices (A,B,C) of an equilateral triangle of side a in free space. At t=0, they are given an initial velocity VA​​=V0​AC,VB​​=V0​BA… Includes diagram
    Physics · Center of Mass · MCQ
  2. Q52.In an experiment with photoelectric effect, the stopping potential,
    Physics · Dual Nature of Radiation · MCQ
  3. Q53.The number of spectral lines emitted by atomic hydrogen that is in the 4th energy level, is
    Physics · Atoms and Nuclei · MCQ
  4. Q54.The difference of temperature in a material can convert heat energy into electrical energy. To harvest the heat energy, the material should have
    Physics · Heat and Thermodynamics · MCQ
  5. Q55.Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : With the increase in the pressure of an ideal gas, the volume falls off more rapidly in an isothermal process in…
    Physics · Heat and Thermodynamics · MCQ
  6. Q56.A sand dropper drops sand of mass m(t) on a conveyer belt at a rate proportional to the square root of speed (v) of the belt, i.e., dtdm​∝v​. If P is the power delivered to run the belt at constant speed then which…
    Physics · Work Power and Energy · MCQ
  7. Q57.A plane electromagnetic wave propagates along the + x direction in free space. The components of the electric field, E and magnetic field, B vectors associated with the wave in Cartesian frame are
    Physics · Electromagnetic Waves · MCQ
  8. Q58.A cup of coffee cools from 90°C to 80°C in t minutes when the room temperature is 20°C. The time taken by the similar cup of coffee to cool from 80°C to 60°C at the same room temperature is:
    Physics · Heat and Thermodynamics · MCQ
  9. Q59.A convex lens made of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water (refractive index = 1.33), its focal length changes to
    Physics · Geometrical Optics · MCQ
  10. Q60.Two bodies A and B of equal mass are suspended from two massless springs of spring constant k1 and k2, respectively. If the bodies oscillate vertically such that their amplitudes are equal, the ratio of the maximum velocity of A to the…
    Physics · Simple Harmonic Motion · MCQ
  11. Q61.Match List - I with List - II. Choose the correct answer from the options given below : Includes table
    Physics · Units and Measurements · MCQ
  12. Q62.Match List - I with List - II. Choose the correct answer from the options given below: Includes table
    Physics · Magnetic Properties of Matter · MCQ
  13. Q63.Two concave refracting surfaces of equal radii of curvature and refractive index 1.5 face each other in air as shown in figure. A point object O is placed midway, between P and B. The separation between the images of O, formed by each… Includes diagram
    Physics · Geometrical Optics · MCQ
  14. Q64.The truth table for the circuit given below is: Includes diagram
    Physics · Electronic Devices · MCQ
  15. Q65.A poly-atomic molecule (CV​=3R,CP​=4R, where R is gas constant) goes from phase space point A(PA​=105 Pa, VA​=4×10−6 m3) to… Includes diagram
    Physics · Heat and Thermodynamics · MCQ
  16. Q66.Two identical symmetric double convex lenses of focal length f are cut into two equal parts L1, L2 by AB plane and L3, L4 by XY plane as shown in figure respectively. The ratio of focal lengths of lenses L1 and L3 is Includes diagram
    Physics · Geometrical Optics · MCQ
  17. Q67.A point charge causes an electric flux of −2×104Nm2C−1 to pass through a spherical Gaussian surface of 8.0 cm radius, centred on the charge. The value of the point charge is : (Given ϵ0​=8.85×10−12C2 N−1 m−2…
    Physics · Electrostatics · MCQ
  18. Q68.A capacitor, C1​=6μF is charged to a potential difference of V0​=5V using a 5V battery. The battery is removed and another capacitor, C2​=12μF is inserted in place of the battery. When the switch 'S' is closed, the… Includes diagram
    Physics · Capacitor · MCQ
  19. Q69.An electric dipole is placed at a distance of 2 cm from an infinite plane sheet having positive charge density σo​. Choose the correct option from the following. Includes diagram
    Physics · Electrostatics · MCQ
  20. Q70.Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Three identical spheres of same mass undergo one dimensional motion as shown in figure with initial velocities vA​=5 m/s,vB​=2 m/s,vC​=4 m/s… Includes diagram
    Physics · Center of Mass · MCQ
  21. Q71. A physical quantity Q is related to four observables a,b,c,d as follows : Q=cdab4​ where, a=(60±3)Pa;b=(20±0.1)m;c=(40±0.2)Nsm−2…
    Physics · Units and Measurements · Numerical
  22. Q72.Two cars P and Q are moving on a road in the same direction. Acceleration of car P increases linearly with time whereas car Q moves with a constant acceleration. Both cars cross each other at time t = 0, for the first time. The maximum…
    Physics · Motion in A Straight Line · Numerical
  23. Q73.Two planets, A and B are orbiting a common star in circular orbits of radii RA​ and RB​, respectively, with RB​=2RA​. The planet B is 42​ times more massive than planet A. The ratio (LA​LB​​)…
    Physics · Gravitation · Numerical
  24. Q74.A parallel plate capacitor consisting of two circular plates of radius 10 cm is being charged by a constant current of 0.15 A . If the rate of change of potential difference between the plates is 7×108 V/s…
    Physics · Capacitor · Numerical
  25. Q75.The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9×10−4 Tesla. If the solenoid carries a current of 0.29 A , then the length of the solenoid is ​πcm.
    Physics · Magnetics · Numerical