Practice/Question bank/JEE Main

JEE Main practice questions

NTA-style Physics, Chemistry and Maths MCQs with solutions. 2,688 questions in the bank.

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  1. 1A train of mass M is moving on a circular track of radius ' R ' with constant speed V. The length of thetrain is half of the perimeter of…Physics· System of particles· Moderate· figure
  2. 2The rod is uniform & weigh 500 N. Find magnitude of tension so that tension in both strings (S_1, S_2) aresame (strings ideal).Physics· Rigid Body Dynamics· Moderate· figure
  3. 3The dependence of potential with distance r from the centre of a negatively charged non-conducting solid sphere is given by the following…Physics· Electrostatics· Moderate· figure
  4. 4In the given diagram aproton is given a speed v at Pin the horizontal direction then the time after which it comesout of the magnetic field…Physics· Mangetism· Moderate· figure
  5. 5The circuit shown below is working as a 8V dc regulated voltage source. When 12V is used as input,the power dissipated (in mW) in each…Physics· Electronic devices· Moderate· figure
  6. 6Three particles each of mass m can slide on fixed frictionless horizontal circular tracks in the same horizontal plane as shown in the…Physics· Center of mass· Tough· figure
  7. 7A 20 gm particle is subjected to two simple harmonic motions x_1 = 2 sin 10 t, $x_{2} = 4sin\left( 10t + \frac{\pi}{3} \right)$where x_1&…Physics· Simple Harmonic Motion· Moderate
  8. 8The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity, coercivity and saturation,…Physics· Magnetism· Moderate· figure
  9. 9A ball is given velocity [IMAGE] as shown. If the ratio of centripetal acceleration totangential acceleration at the point where the ball…Physics· figure
  10. 10A steel wire is rigidly fixed at both ends. Its length, mass and cross sectional area are 1m, 0.01 kg and [IMAGE] respectively. Then the…Physics· figure
  11. 11Consider a particle initially moving with a velocity 7 m/s starts decelerating at a constant rate of$\ 2m/s^{2}$. The distance travelled in…Physics· Kinematics· Moderate· figure
  12. 12A uniform magnetic field B in positive z direction exists in a circular region of radius R = 5 m. A loop of radius R = 5m lying in x - y…Physics· figure
  13. 13In the given A.C. circuit, if battery voltage is[IMAGE], power delivered by battery will have a power factor of[IMAGE]. Find n.Physics· figure
  14. 14Figure is the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. If the work…Physics· Dual Nature of Matter· Moderate· figure
  15. 15The maximum peak to peak voltage of an AM wave is [IMAGE] and the minimum peak to peak voltage is[IMAGE]. The modulation factor is 10x.…Physics· Communication system· Moderate· figure
  16. 16An asteroid is moving directly towards the centre of the earth. when at a distance of 10R (R is theradius of the earth) from the earths…Physics· Gravitation· Tough
  17. 17The radius of a coil of wire with 21 turns is 0.22 m, and i_2 current flows clockwise in the coil as shown. A long straight wire carrying a…Physics· Moving charges and magnetism· Moderate· figure
  18. 18Two moles of hydrogen are mixed with n moles of helium. The root mean square speed of gas molecules in the mixture is $\sqrt{2}$ times the…Physics· Kinetic Theory of Gases· Moderate
  19. 19A uniform elastic rod of cross-section area A, natural length L and Young's modulus Y is placed on asmooth horizontal surface. Now two…Physics· Elasticity· Tough· figure
  20. 20An ideal gas at a pressure of 1 atmosphere andtemperature of 27°C is compressed adiabaticallyuntil its pressure becomes 8 times the…Physics· Thermodynamics· Moderate· figure
  21. 21Two uniform solid spheres of equal radii R, butmass M and 4M have a centre to centreseparation 6R, as shown in figure. A projectile of mass…Physics· Tough· figure
  22. 22A charged particle of mass moving under the influence of uniform electric field $E\overset{\rightarrow}{i}$and a uniform magnetic field…Physics· Magnetics· Tough· figure
  23. 23Two infinite planes each with uniform surface charge density $+ \sigma$ are kept in such a way that the anglebetween them is 30°. The…Physics· Electrostatics· Moderate· figure
  24. 24A uniform cylinder floats with its axis vertical with [IMAGE] parts of its length in the upper liquid and [IMAGE] part of its length in…Physics· figure
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