Physics · 2019 · 9 Jan · Shift 2
25 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 · 9 Jan · Shift 2
25 questions from this JEE Main paper
Capacitor1 questionsCurrent Electricity1 questionsRotational Motion1 questionsElectronic Devices1 questionsAlternating Current2 questionsDual Nature of Radiation1 questionsMotion in A Straight Line1 questionsUnits and Measurements2 questionsElectrostatics2 questionsSimple Harmonic Motion2 questionsMagnetics2 questionsGeometrical Optics1 questionsWave Optics1 questionsHeat and Thermodynamics1 questionsLaws of Motion1 questionsGravitation1 questionsProperties of Matter1 questionsElectromagnetic Waves1 questionsWork Power and Energy1 questionsMotion in A Plane1 questions
- Q48.A parallel plate capacitor with square plates is filled with four dielecytrics of dielectrics constants K1, K2, K3, K4 arranged as shown in the figure. The effective dielectric constant K will be : Includes diagramPhysics · Capacitor · MCQ
- Q49.In the given circuit the the internal resistance of the 18 V cell is negligible. If R1 = 400 , R3 = 100 and R4 = 500 and the reading of an ideal voltmeter across R4 is 5V, then the value of R2 will be : Includes diagramPhysics · Current Electricity · MCQ
- Q50.A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of 30o from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s 1) will be (g = 10 ms … Includes diagramPhysics · Rotational Motion · MCQ
- Q51.Ge and Si diodes start conducting at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the value of V0 changes by : (assume that the Ge diode has large breakdown voltage) Includes diagramPhysics · Electronic Devices · MCQ
- Q52.A series AC circuit containing an inductor (20 mH), a capacitor (120 F) and a resistor (60 ) is driven by an AC source of 24V/50 Hz. The energy dissipated in the circuit in 60 s is :Physics · Alternating Current · MCQ
- Q53.The magnetic field associated with a light wave is given, at the origin, by B = B0 [sin(3.14 107)ct + sin(6.28 107)ct]. If this light falls on a silver plate having a work function of 4.7 eV, what will be the maximum…Physics · Dual Nature of Radiation · MCQ
- Q54.In a car race on straight road, car A takes a time t less than car B at the finish and passes finishing point with a speed '' more than that of car B. Both the cars start from rest and travel with constant acceleration a1 and a2…Physics · Motion in A Straight Line · MCQ
- Q55.The pitch and the number of divisions, on the circular scale, for a given screw gauge are 0.5 mm and 100 respectively. When the screw gauge is fully tightened without any object, the zero of its circular scale lies 3 divisions below the…Physics · Units and Measurements · MCQ
- Q56.Charge is distributed within a sphere of radius R with a volume charge density where A and a are constants. If Q is the total charge of this charge distribution, the…Physics · Electrostatics · MCQ
- Q57.A rod of mass 'M' and length '2L' is suspended at its middle by a wire. It exhibits torsional oscillations; If two masses each of 'm' are attached at distance 'L/2' from its centre on both sides, it reduces the oscillation frequency by…Physics · Simple Harmonic Motion · MCQ
- Q58.One of the two identical conducting wires of length L is bent in the form of a circular loop and the other one into a circular coil of N identical turns. If the same current is passed in both, the radio of the magnetic field at the central…Physics · Magnetics · MCQ
- Q59.Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror (M1) and parallel to the second mirror (M2) is finally reflected from the second mirror (M2) parallel to the first mirror (M1). The angle…Physics · Geometrical Optics · MCQ
- Q60.In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength = 500 nm is incident on the slits. The total number of bright fringes that are observed in the angular range 30o …Physics · Wave Optics · MCQ
- Q61.A 15 g mass of nitrogen gas is enclosed in a vessel at a temperature 27oC. Amount of heat transferred to the gas, so that rms velocity of molecules is doubled, is about : [Take R = 8.3 J/K mole]Physics · Heat and Thermodynamics · MCQ
- Q62.A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point. the rope deviated at an angle of 45o at the roof point. If the suspended mass is at equilibrium, the magnitude…Physics · Laws of Motion · MCQ
- Q63.A particle is executing simple harmonic motion (SHM) of amplitude A, along the x-axis, about x = 0. When its potential Energy (PE) equals kinetic energy (KE), the position of the particle will be :Physics · Simple Harmonic Motion · MCQ
- Q64.The energy required to take a satellite to a height 'h' above Earth surface (radius of Earth = 6.4 103 km) is E1 and kinetic energy required for the satellite to be in a circular orbit at this height is E2. The value of h for…Physics · Gravitation · MCQ
- Q65.The top of a water tank is open to air and its water level is mainted. It is giving out 0.74 m3 water per minute through a circular opening of 2 cm radius in its wall. The depth of the center of the opening from the level of water in the…Physics · Properties of Matter · MCQ
- Q66.Expression for time in terms of G(universal gravitional constant), h (Planck constant) and c (speed of light) is proportional to :Physics · Units and Measurements · MCQ
- Q67.A particle having the same charge as of electron moves in a ciurcular path of radius 0.5 cm under the influence of a magnetic field 0f 0.5 T. If an electric field of 100 V/m makes it to move in a straight path, then the mass of the…Physics · Magnetics · MCQ
- Q68.Two point charges q1 and q2( 25 C) are placed on the x-axis at x = 1 m and x = 4 m respectively. The electric field (in V/m) at a point y = 3 m on y-axis is, [take ${1 \over {4\pi { \in…Physics · Electrostatics · MCQ
- Q69.The energy associated with electric field is (UE) and with magnetic field is (UB) for an electromagnetic wave in free space. Then :Physics · Electromagnetic Waves · MCQ
- Q70.A force acts on a 2 kg object so that its position is given as a function of time as x = 3t2 + 5. What is the work done by this force in first 5 seconds ?Physics · Work Power and Energy · MCQ
- Q71.A power transmission line feeds input power at 2300 V to a srep down transformer with its primary windings having 4000 turns. The output power is delivered at 230 V by the transformer. If the current in the primary of the transformer is 5A…Physics · Alternating Current · MCQ
- Q72.The position co-ordinates of a particle moving in a 3-D coordinate system is given by x = a cos t y = a sin t and z = a t The speed of the particle is :Physics · Motion in A Plane · MCQ