Physics · 2019 · 12 Jan · Shift 1
28 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 1
28 questions from this JEE Main paper
Heat and Thermodynamics3 questionsElectronic Devices1 questionsUnits and Measurements1 questionsGravitation2 questionsGeometrical Optics2 questionsWaves1 questionsAlternating Current1 questionsCapacitor1 questionsCenter of Mass2 questionsCurrent Electricity3 questionsRotational Motion1 questionsElectrostatics2 questionsElectromagnetic Waves1 questionsDual Nature of Radiation1 questionsMotion in A Plane1 questionsMagnetics2 questionsAtoms and Nuclei1 questionsSimple Harmonic Motion1 questionsMotion in A Straight Line1 questions
- Q46.For the given cyclic process CAB as shown for a gas, the work done is : Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q47.The output of the given logic circuit is : Includes diagramPhysics · Electronic Devices · MCQ
- Q48.The least count of the main scale of a screw gauge is 1 mm. The minimum number of divisions on its circular scale required to measure 5 m diameter of a wire is :Physics · Units and Measurements · MCQ
- Q49.A satellite of mass M is in a circular orbit of radius R about the centre of the earth. A meteorite of the same mass, falling towards the earth, collides with the satellite completely inelastically. The speeds of the satellite and the…Physics · Gravitation · MCQ
- Q50.What is the position and nature of image formed by lens combination shown in figure ? (f1, f2 are focal lengths) Includes diagramPhysics · Geometrical Optics · MCQ
- Q51.A straight rod of length L extends from x = a to x = L + a. The gravitational force it exerts on a point mass 'm' at x = 0, if the mass per unit length of the rod is A + Bx2 , is given by :Physics · Gravitation · MCQ
- Q52.A travelling harmonic wave is represented by the equation y(x,t) = 10–3sin (50t + 2x), where, x and y are in mater and t is in seconds. Which of the following is a correct statement about the wave ?Physics · Waves · MCQ
- Q53.In the figure shown, a circuit contains two identical resistors with resistance R = 5 and an inductance with L = 2mH. An ideal battery of 15 V is connected in the circuit. What will be the current through the battery long after… Includes diagramPhysics · Alternating Current · MCQ
- Q54.In the figure shown, after the switch 'S' is turned from position 'A' to position 'B', the energy dissipated in the circuit in terms of capacitance 'C' and total charge 'Q' is : Includes diagramPhysics · Capacitor · MCQ
- Q55.A simple pendulum, made of a string of length and a bob of mass m, is released from a small angle . It strikes a block of mass M, kept on a horizontal surface at its lowest point of oscillations, elastically. It…Physics · Center of Mass · MCQ
- Q56.In a meter bridge, the wire of length 1 m has a non-uniform cross-section such that, the variation of its resistance R with length is . Two equal… Includes diagramPhysics · Current Electricity · MCQ
- Q57.The galvanometer deflection, when key K1 is closed but K2 is open, equals 0 (see figure). On closing K2 also and adjusting R2 to 5 , the deflection in galvanometer becomes . The resistance of the… Includes diagramPhysics · Current Electricity · MCQ
- Q58.A point source of light, S is placed at distance L in front of the centre of plane mirror of width d which is hanging vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror, at a distance 2L as shown… Includes diagramPhysics · Geometrical Optics · MCQ
- Q59.The position vector of the centre of mass of an asymmetric uniform bar of negligible area of crosssection as shown in figure is : Includes diagramPhysics · Center of Mass · MCQ
- Q60.Let the moment of inertia of a hollow cylinder of length 30 cm (inner radius 10 cm and outer radius 20 cm), about its axis be I. The radius of a thin cylinder of the same mass such that its moment of inertia about its axis is also I, is :Physics · Rotational Motion · MCQ
- Q61.Determine the electric dipole moment of the system of the three charges, placed on the vertices of an equilateral triangle, as shown in the figure : Includes diagramPhysics · Electrostatics · MCQ
- Q62.A light wave is incident normally on a glass slab of refractive index 1.5. If 4 % of light gets reflected and the amplitude of the electric field of the incident light is 30 V/m, then the amplitude of the electric field for the wave…Physics · Electromagnetic Waves · MCQ
- Q63.A particle A of mass 'm' and charge 'q' is accelerated by a potential difference of 50 V. Another particle B of mass ' 4 m' and charge 'q' is accelerated by a potential difference of 2500 V. The ratio of de-Broglie wavelengths …Physics · Dual Nature of Radiation · MCQ
- Q64.A cylinder of radius R is surrounded by a cylindrical shell of inner radius R and outer radius 2R. The thermal conductivity of the material of the inner cylinder is K1 and the of the outer cylinder is K2. Assuming no loss of heat, the…Physics · Heat and Thermodynamics · MCQ
- Q65.An ideal gas occupies a volume of 2m3 at a pressure of 3 106 Pa. The energy of the gas is :Physics · Heat and Thermodynamics · MCQ
- Q66.A person standing on an open ground hears the sound of a jet aeroplane, coming from north at an angle 60o with ground level. But he finds the aeroplane right vertically above his position. If v is the speed of sound, speed of the plane is :Physics · Motion in A Plane · MCQ
- Q67.As shown in the figure, two infinitely long, identical wires are bent by 90o and placed in such a way that the segments LP and QM are along the x-axis, while segments PS and QN are parallel to the y-axis. If OP = OQ = 4cm, and the… Includes diagramPhysics · Magnetics · MCQ
- Q68.Two electric bulbs, rated at (25 W, 220 V) and (100 W, 220 V), are connected in series across a 220 V voltage source. If the 25 W and 100 W bulbs draw powers P1 and P2 respectively, then :Physics · Current Electricity · MCQ
- Q69.A particle of mass m moves in a circular orbit in a central potential field U(r) = kr2. If Bohr 's quantization conditions are applied, radii of possible orbitls and energy levels vary with quantum number n as :Physics · Atoms and Nuclei · MCQ
- Q70.Two light identical springs of spring constant k are attached horizontally at the two ends of a uniform horizontal rod AB of length and mass m. The rod is pivoted at its centre 'O' and can rotate freely in horizontal plane. The… Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q71.A passenger train of length 60 m travels at a speed of 80 km/hr. Another freight train of length 120 m travels at a speed of 30 km/hr. The ratio of times taken by the passenger train to completely cross the freight train when : (i) they…Physics · Motion in A Straight Line · MCQ
- Q72.A proton and an -particle (with their masses in the ratio of 1 : 4 and charges in the ratio of 1 : 2) are accelerated from rest through a potential difference V. If a uniform magnetic field (B) is set up perpendicular to their…Physics · Magnetics · MCQ
- Q73.There is a uniform spherically symmetric surface charge density at a distance R0 from the origin. The charge distribution is initially at rest and starts expanding because of mutual repulsion. The figure that represents best the speed V…Physics · Electrostatics · MCQ