Physics · 2021 · 24 Feb · Shift 1
27 questions from this JEE Main paperGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Physics · 2021 · 24 Feb · Shift 1
27 questions from this JEE Main paper
Electrostatics1 questionsSimple Harmonic Motion1 questionsCurrent Electricity2 questionsHeat and Thermodynamics3 questionsGeometrical Optics1 questionsWave Optics2 questionsGravitation3 questionsProperties of Matter2 questionsMotion in A Straight Line1 questionsAtoms and Nuclei1 questionsUnits and Measurements1 questionsCapacitor1 questionsRotational Motion1 questionsCenter of Mass1 questionsElectromagnetic Waves1 questionsLaws of Motion2 questionsAlternating Current1 questionsElectronic Devices1 questionsDual Nature of Radiation1 questions
- Q45.A cube of side 'a' has point charges +Q located at each of its vertices except at the origin where the charge is Q. The electric field at the centre of cube is : Includes diagramPhysics · Electrostatics · MCQ
- Q46.In the given figure, a mass M is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the spring is k. The mass oscillates on a frictionless surface with time period T and amplitude A. When… Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q47.A current through a wire depends on time as i = 0t + t2 where 0 = 20 A/s and = 8 As 2. Find the charge crossed through a section of the wire in 15 s.Physics · Current Electricity · MCQ
- Q48.Match List I with List II. Choose the correct answer from the options given below : Includes tablePhysics · Heat and Thermodynamics · MCQ
- Q49.n mole of a perfect gas undergoes a cyclic process ABCA (see figure) consisting of the following processes. A B : Isothermal expansion at temperature T so that the volume is doubled from V1 to V2 = 2V1 and pressure charges from P1 to… Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q50.Each side of a box made of metal sheet in cubic shape is 'a' at room temperature 'T', the coefficient of linear expansion of the metal sheet is ''. The metal sheet is heated uniformly, by a small temperature T, so that its…Physics · Heat and Thermodynamics · MCQ
- Q51.A cell E1 of emf 6V and internal resistance 2 is connected with another cell E2 of emf 4V and internal resistance 8 (as shown in the figure). The potential difference across points X and Y is : Includes diagramPhysics · Current Electricity · MCQ
- Q52.The focal length f is related to the radius of curvature r of the spherical convex mirror by :Physics · Geometrical Optics · MCQ
- Q53.In a Young's double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit-width. Find the ratio of the maximum to the minimum intensity in…Physics · Wave Optics · MCQ
- Q54.Four identical particles of equal masses 1 kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be :Physics · Gravitation · MCQ
- Q55.Consider two satellites S1 and S2 with periods of revolution 1 hr. and 8 hr. respectively revolving around a planet in circular orbits. The ratio of angular velocity of satellite S1 to the angular velocity of satellite S2 is :Physics · Gravitation · MCQ
- Q56.If Y, K and are the values of Young's modulus, bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters.Physics · Properties of Matter · MCQ
- Q57.If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph? Includes diagramPhysics · Motion in A Straight Line · MCQ
- Q58.In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E. The transitions A, B and C respectively represent : Includes diagramPhysics · Atoms and Nuclei · MCQ
- Q59.The work done by a gas molecule in an isolated system is given by, , where x is the displacement, k is the Boltzmann constant and T is the temperature. and are…Physics · Units and Measurements · MCQ
- Q60.Two stars of masses m and 2m at a distance d rotate about their common centre of mass in free space. The period of revolution is :Physics · Gravitation · MCQ
- Q61.Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be :Physics · Capacitor · MCQ
- Q62.Moment of inertia (M. I.) of four bodies, having same mass and radius, are reported as; I1 = M.I. of thin circular ring about its diameter, I2 = M.I. of circular disc about an axis perpendicular to disc and going through the centre, I3 =…Physics · Rotational Motion · MCQ
- Q63.An unpolarised light beam is incident on the polarizer of a polarization experiment and the intensity of light beam emerging from the analyzer is measured as 100 Lumens. Now, if the analyzer is rotated around the horizontal axis (direction…Physics · Wave Optics · Numerical
- Q64.A ball with a speed of 9 m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30 with the original direction. The ratio of velocities of the balls after collision is x…Physics · Center of Mass · Numerical
- Q65.An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is 107 m/s.Physics · Electromagnetic Waves · Numerical
- Q66.A hydraulic press can lift 100 kg when a mass 'm' is placed on the smaller piston. It can lift kg when the diameter of the larger piston is increased by 4 times and that of the smaller piston is decreased by 4…Physics · Properties of Matter · Numerical
- Q67.An inclined plane is bent in such a way that the vertical cross-section is given by where y is in vertical and x in horizontal direction. If the upper surface of this curved plane is rough with coefficient of…Physics · Laws of Motion · Numerical
- Q68.A common transistor radio set requires 12 V (D.C.) for its operation. The D.C. source is constructed by using a transformer and a rectifier circuit, which are operated at 220 V (A.C.) on standard domestic A.C. supply. The number of turns…Physics · Alternating Current · Numerical
- Q69.The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be …Physics · Laws of Motion · Numerical
- Q70.In connection with the circuit drawn below, the value of current flowing through 2 k resistor is 10 4 A. Includes diagramPhysics · Electronic Devices · Numerical
- Q71.Given below are two statements : Statement I : Two photons having equal linear momenta have equal wavelengths. Statement II : If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease. In the…Physics · Dual Nature of Radiation · MCQ