Physics · 2019 · 12 Jan · Shift 2
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 · 2019 · 12 Jan · Shift 2
27 questions from this JEE Main paper
Properties of Matter3 questionsCapacitor3 questionsRotational Motion3 questionsElectromagnetic Waves1 questionsElectromagnetic Induction1 questionsCenter of Mass1 questionsWaves1 questionsHeat and Thermodynamics2 questionsDual Nature of Radiation2 questionsMagnetic Properties of Matter1 questionsCurrent Electricity2 questionsGeometrical Optics2 questionsLaws of Motion1 questionsUnits and Measurements1 questionsSimple Harmonic Motion1 questionsGravitation1 questionsAlternating Current1 questions
- Q45.A load of mass M kg is suspended from a steel wire of length 2m and radius 1.0 mm in Searle's apparatus experiment. The increase in length produced in the wire is 4.0 mm. Now the load is fully immersed in a liquid of relative density 2.…Physics · Properties of Matter · MCQ
- Q46.A long cylindrical vessel is half filled with a liquid. When the vessel is rotated about its own vertical axis, the liquid rises up near the wall. If the radius of vessel is 5 cm and its rotational speed is 2 rotations per second, then the…Physics · Properties of Matter · MCQ
- Q47.The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure : When is the value of current at t = 4 s ? Includes diagramPhysics · Capacitor · MCQ
- Q48.Two particles A, B are moving on two concentric circles of radii R1 and R2 with equal angular speed . At t = 0, their positions and direction of motion are shown in the figure. : The relative velocity … Includes diagramPhysics · Rotational Motion · MCQ
- Q49.The mean intensity of radiation on the surface of the Sun is about 108 W/m2 . The rms value of the corresponding magnetic field is closet to :Physics · Electromagnetic Waves · MCQ
- Q50.A 10 m long horizontal wire extends from North East to South West. It is falling with a speed of 5.0 ms–1, at right angles to the horizontal component of the earth's magnetic field of 0.3 10–4 Wb/m2. The value of the induced emf…Physics · Electromagnetic Induction · MCQ
- Q51.An alpha-particle of mass m suffers 1-dimensional elastic collision with a nucleus at rest of unknown mass. It is scattered directly backwards losing, 64% of its initial kinetic energy. The mass of the nucleus isPhysics · Center of Mass · MCQ
- Q52.A resonance tube is old and has jagged end. It is still used in the laboratory to determine velocity of sound in air. A tuning fork of frequency 512 Hz produces first resonance when the tube is filled with water to a mark 11 cm below a…Physics · Waves · MCQ
- Q53.A vertical closed cylinder is separated into two parts by a frictionless piston of mass m and of negligible thickness. The piston is free to move along the length of the cylinder. The length of the cylinder above the piston is 1,…Physics · Heat and Thermodynamics · MCQ
- Q54.A parallel plate capacitor with plates of area 1 m2 each, are at a separation of 0.1 m. If the electric field between the plates is 100 N/C, the magnitude of charge on each plate is : (Take 0 = 8.85 10 12 …Physics · Capacitor · MCQ
- Q55.When a certain photosensitive surface is illuminated with monochromatic light of frequency v, the stopping potential for the current is –V0/2. When the surface is illuminated by monochromatic light of frequency v/2, the stopping potential…Physics · Dual Nature of Radiation · MCQ
- Q56.A paramagnetic material has 1028 atoms/m3. Its magnetic susceptibility at temperature 350 K is 2.8 10–4. Its susceptibility at 300 K is :Physics · Magnetic Properties of Matter · MCQ
- Q57.In a Frank-Hertz experiment, an electron of energy 5.6 eV passes through mercury vapour and emerges with an energy 0.7 eV. The minimum wavelength of photons emitted by mercury atoms is close to :Physics · Dual Nature of Radiation · MCQ
- Q58.The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is 'I(x)'. Which one of the graphs represents the variation of I(x) with x correctly ?Physics · Rotational Motion · MCQ
- Q59.In the given circuit diagram, the currents, I1 = – 0.3 A, I4 = 0.8 A and I5 = 0.4 A, are flowing as shown. The currents I2, I3 and I6, respectively, are : Includes diagramPhysics · Current Electricity · MCQ
- Q60.A plano-convex lens (focal length f2, refractive index 2, radius of curvature R) fits exactly into a plano-concave lens (focal length f1, refractive index 1, radius of curvature R). Their plane surfaces are parallel to each…Physics · Geometrical Optics · MCQ
- Q61.A block kept on a rough inclined plane, as shown in the figure, remains at rest upto a maximum force 2 N down the inclined plane. The maximum external force up the inclined plane that does not move the block is 10 N. The coefficient of… Includes diagramPhysics · Laws of Motion · MCQ
- Q62.Let , r, C and V represent inductance, resistance, capacitance and voltage, respectively. The dimension of in SI units will be :Physics · Units and Measurements · MCQ
- Q63.A simple harmonic motion is represented by : y = 5 (sin 3 t + cos 3 t) cm The amplitude and time period of the motion are :Physics · Simple Harmonic Motion · MCQ
- Q64.Two satellites, A and B, have masses m and 2m respectively. A is in a circular orbit of radius R, and B is in a circular orbit of radius 2R around the earth. The ratio of their kinetic energies, TA/TB, is ;Physics · Gravitation · MCQ
- Q65.A galvanometer, whose resistance is 50 ohm, has 25 divisions in it. When a current of 4 10–4 A passes through it, its needle ( pointer) deflects by one division. To use this galvanometer as a voltmeter of range 2.5 V, it should be…Physics · Current Electricity · MCQ
- Q66.A particle of mass 20 g is released with an initial velocity 5 m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. when the particle… Includes diagramPhysics · Rotational Motion · MCQ
- Q67.An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature 300 K. The mean time between two successive collisions is 6 10–8 s. If the pressure is doubled and temperature is increased to 500 K, the mean time…Physics · Heat and Thermodynamics · MCQ
- Q68.In the circuit shown, find C if the effective capacitance of the whole circuit is to be 0.5 F. All values in the circuit are in F. Includes diagramPhysics · Capacitor · MCQ
- Q69.Formation of real image using a biconvex lens is shown below : If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ? Includes diagramPhysics · Geometrical Optics · MCQ
- Q70.In the above circuit, C = F, R2 = 20 , L = H and R1 = 10 . Current in L-R1 path is I1 and in C-R2 path it is I2 . The voltage of A.C. source is given by, V = 200 … Includes diagramPhysics · Alternating Current · MCQ
- Q71.A soap bubble, blown by a mechanical pump at the mouth of a tube, increases in volume, with time, at a constant rate. The graph that correctly depicts the time dependence of pressure inside the bubble is given by :Physics · Properties of Matter · MCQ