Practice/Question bank/JEE Main
JEE Main practice questions
NTA-style Physics, Chemistry and Maths MCQs with solutions. 2,688 questions in the bank.
- 1A small 1 kg mass is launched from the top of a cliff with speed V at an angle of 30° above the horizontal. When the mass reaches the…Physics· figure
- 2Which one of the following choices is closest to the order of the angular momentum of the Earth (expressed in base MKS units) associated…Physics· figure
- 3An electromagnetic wave has an electric field given by the expression (in Cartesian co-ordinates): [IMAGE] What is the direction of the…Physics· figure
- 4A uniform solid cylinder of mass M = 2 kg and radius R = 10 cm is connected about an axis through the centre of the cylinder to a…Physics· figure
- 5The diagram below shows the lowest four energy levels for an electron in a hypothetical atom. The electron is excited to the -1eV level of…Physics· figure
- 6A positively charged particle is moved in a straight line to the right from position x = -4 m to position x = -2 m by an external agent.…Physics
- 7A hollow conducting sphere of inner radius R and outer radius 2R is given a charge Q as shown in the figure, then thePhysics· figure
- 8Four functions given below describe motion of a particle. (I) y = sin ωt - cos ωt, (II) y = sin3 wt, (III) y = 5 cos [IMAGE], (IV) y = 1 +…Physics· figure
- 9has four choicesPhysics
- 10Four metal rods all of identical dimensions and made of same material are welded together at a single point. The configuration is such that…Physics
- 11Gravitational force between two identical uniform solid gold spheres of radius r each in contact is proportional to n power of r. Then…Physics· figure
- 12Find the resultant focal length (in cm ) for following system where the common radius of curvature is 15 cm. Glass has refractive index of…Physics· figure
- 13In figure a wire perpendicular to a long straight wire is moving parallel to it with a speed v = 10 m/s in the direction of the current…Physics· figure
- 14A mass of material exists in its solid form at its melting temperature 10°C. The following processes then occur to the material: Process-1:…Physics· figure
- 15In a Young's double slit experiment sources of equal intensities are used. Distance between slits is d and wavelength of light used is λ(λ…Physics· figure
- 16A mixture of two moles of hydrogen and one mole of argon gas is taken in a closed container at room temperature. Consider the following two…Physics· figure
- 17The primary purpose of using a parabolic mirror in a reflecting telescope isPhysics
- 18Three polaroids are kept coaxially. Angle between the first and third polaroid is 90°. Angle between the first and second polaroid is 60°.…Physics· figure
- 19Statement-1: In a dynamo, it is necessary that coil should be moving and magnet should be stationary and not vice versa. Statement-2:…Physics
- 20An electron starting from rest and accelerated through V = 20,000 V in an x-ray tube loses half the energy it acquired as it approaches an…Physics· figure
- 21A wire of circular cross section has inner portion of radius R made of material of resisitivity ρ and is surrounded by an outer portion of…Physics· figure
- 22has four choicesPhysics
- 23A solid cylinder of mass m is placed over the trolley as shown in the figure. The trolley starts to move forward with constant horizontal…Physics· figure
- 24The frequency of incident light falling on photo sensitive substance is doubled. If E_1 is the kinetic energy of emitted electron in first…Physics· figure