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. 1When a metallic surface is illuminated with monochromatic light of wavelength [IMAGE] the stopping potential is [IMAGE] When the same…Physics· Dual Nature of Matter· Moderate· figure
  2. 2Figure 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
  3. 3In an α -decay the Kinetic energy of α particle is [IMAGE] and Q -value of the reaction is[IMAGE]. If the mass number of the mother nucleus…Physics· Nuclear physics· Moderate· figure
  4. 4Both the diodes used in the circuit shown are assumed to be ideal and have negligible resistance when these are forward biased. Built in…Physics· Electronic device· Moderate· figure
  5. 5When an electron of hydrogen like atom jumps from a higher energy level to lower energy level, thenPhysics· Atomic Physics· Moderate· figure
  6. 6The energy required to ionize a hydrogen like ion in its ground state is 9Rydbergs. What is the wavelength of the radiation emitted when…Physics· Atomic Physics· Moderate· figure
  7. 7An electron of mass m and magnitude of charge |e| initially at rest gets accelerated by a constant electric field E. The rate of change of…Physics· Dual Nature of Matter· Moderate· figure
  8. 8A particle moving with kinetic energy E has de Broglie wavelength[IMAGE]. If energy [IMAGE] is added to its energy, the wavelength…Physics· Dual Nature of Matter· Moderate· figure
  9. 9Radiation, with wavelength 656.1 nm falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform magnetic…Physics· Dual Nature of Matter· Moderate· figure
  10. 10Which of the following gives a reversible operation?Physics· Electronic device· Easy
  11. 11An electron (mass m) with initial velocity [IMAGE] is in an electric field [IMAGE] If [IMAGE] is initial de-Broglie wavelength of electron,…Physics· Dual Nature of Matter· Moderate· figure
  12. 12A ball is thrown vertically upwards from the ground. It crosses a point at the height of 25 m. twice at an interval of 4 secs. The ball was…Physics· Kinematics· Moderate· figure
  13. 13Initially spring is in its natural length and blocks A and B are at rest. Find maximum value of constant force F that can be applied on B…Physics· Newton's Laws of Motion· Moderate· figure
  14. 14The particle of mass 1 kg is acted upon by a force$\overset{\rightarrow}{F} = F_{x}\overset{\hat{}}{i} + F_{y}\overset{\hat{}}{j}$ from t =…Physics· Newton's Laws of Motion· Moderate· figure
  15. 15Two inclined planes OA and OB of inclinations to the horizontal $\alpha\ and\ \beta$, each equal to 30º are placed as shown in the figure.…Physics· Projectile Motion· Moderate· figure
  16. 16An object A is dropped from rest from the top of a 30 m high building and at the same moment another object B is projected vertically…Physics· Center of mass· Tough· figure
  17. 17Slider block A moves to the right with constant velocity 6 m/s in the arrangement as shown in the figure. C and D are points on the string.…Physics· Newton's Laws of Motion· Moderate· figure
  18. 18A river is flowing with a speed of $1\ kmh^{- 1}$. A swimmer wants to go to point c starting from A. He swims with a speed of $5\ kmh^{-…Physics· Relative motion· Moderate· figure
  19. 19For the situation shown in figure below, there is no friction between pulley and string. For which of the following values of mass of block…Physics· Newton's Laws of Motion· Moderate· figure
  20. 20All surfaces are smooth. Find the acceleration (in$m/s^{2}$) of sphere in the given figure. $(g = 10m/s^{2})$Physics· Newton's Laws of Motion· Moderate· figure
  21. 21A particle is moved under a force $\overset{\rightarrow}{F} = x\overset{\hat{}}{j}N$(x in meter) from O to A by two paths: path 1 is OBA…Physics· Work Power & Energy· Moderate· figure
  22. 22A block of mass 60 kg is released from rest when compression in the spring is 2 m (natural length of spring is 8 m). Surface AB is smooth…Physics· Work Power & Energy· Moderate· figure
  23. 23A small block of mass m is released from rest from point A inside a smooth hemisphere bowl of radius R, which is fixed on ground such that…Physics· Work Power & Energy· Moderate· figure
  24. 24You are shown a photo of a car driven on the inside wall of a huge vertical cylinder of radius 50 m. The coefficient of static friction…Physics· Center of mass· Easy· figure
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