Physics · 2019 · 12 Apr · 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 · 2019 · 12 Apr · Shift 1
27 questions from this JEE Main paper
Rotational Motion3 questionsHeat and Thermodynamics4 questionsGeometrical Optics1 questionsCurrent Electricity3 questionsElectromagnetic Waves1 questionsElectromagnetic Induction1 questionsElectronic Devices1 questionsElectrostatics2 questionsUnits and Measurements1 questionsMotion in A Plane2 questionsWave Optics2 questionsCapacitor1 questionsDual Nature of Radiation1 questionsMagnetics1 questionsAtoms and Nuclei1 questionsWaves1 questionsCenter of Mass1 questions
- Q45.A person of mass M is, sitting on a swing of length L and swinging with an angular amplitude 0. If the person stands up when the swing passes through its lowest point, the work done by him, assuming that his center of mass moves…Physics · Rotational Motion · MCQ
- Q46.Two moles of helium gas is mixed with three moles of hydrogen molecules (taken to be rigid). What is the molar specific heat of mixture at constant volume ? (R = 8.3 J/mol K)Physics · Heat and Thermodynamics · MCQ
- Q47.A concave mirror has radius of curvature of 40 cm. It is at the bottom of a glass that has water filled up to 5 cm (see figure). If a small particle is floating on the surface of water, its image as seen, from directly above the glass, is… Includes diagramPhysics · Geometrical Optics · MCQ
- Q48.To verify Ohm's law, a student connects the voltmeter across the battery as, shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained : If V0 is almost zero, identify the… Includes diagramPhysics · Current Electricity · MCQ
- Q49.An electromagnetic wave is represented by the electric field . Taking unit vectors in x, y and z directions to be …Physics · Electromagnetic Waves · MCQ
- Q50.At 40o C, a brass wire of 1 mm radius is hung from the ceiling. A small mass, M is hung from the free end of the wire. When the wire is cooled down from 40oC to 20oC it regains its original length of 0.2 m. The value of M is close to :…Physics · Heat and Thermodynamics · MCQ
- Q51.A sample of an ideal gas is taken through the cyclic process abca as shown in the figure. The change in the internal energy of the gas along the path ca is –180 J. The gas absorbs 250 J of heat along the path ab and 60 J along the path bc.… Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q52.The figure shows a square loop L of side 5 cm which is connected to a network of resistances. The whole setup is moving towards right with a constant speed of 1 cm s-1. At some instant, a part of L is in a uniform magnetic field of 1 T,… Includes diagramPhysics · Electromagnetic Induction · MCQ
- Q53.The truth table for the circuit given in the fig. is: Includes diagramPhysics · Electronic Devices · MCQ
- Q54.A galvanometer of resistance 100 has 50 divisions on its scale and has sensitivitv of 20 A/division. It is to be converted to a voltmeter with three ranges of 0-2V, 0-10 V and 0-20 V. The appropriate circuit to do so isPhysics · Current Electricity · MCQ
- Q55.A point dipole is kept at the origin. The potential and electric field due to this dipole on the y-axis at a distance d are, respectively: (Take V= 0 at infinity)Physics · Electrostatics · MCQ
- Q56.Which of the following combinations has the dimension of electrical resistance ( 0 is the permittivity of vacuum and 0 is the permeability of vacuum)?Physics · Units and Measurements · MCQ
- Q57.The trajectory of a projectile near the surface of the earth is given as y = 2x – 9x2 . If it were launched at an angle 0 with speed v0 then (g = 10 ms–2) :Physics · Motion in A Plane · MCQ
- Q58.The resistive network shown below is connected to a D.C. source of 16 V. The power consumed by the network is 4 Watt. The value of R is: Includes diagramPhysics · Current Electricity · MCQ
- Q59.In a double slit experiment, when a thin film of thickness t having refractive index . is introduced in front of one of the slits, the maximum at the centre of the fringe pattern shifts by one fringe width. The value of t is…Physics · Wave Optics · MCQ
- Q60.Two identical parallel plate capacitors, of capacitance C each, have plates of area A, separated by a distance d. The space between the plates of the two capacitors, is filled with three dielectrics, of equal thickness and dielectric… Includes diagramPhysics · Capacitor · MCQ
- Q61.The value of numerical aperature of the objective lens of a microscope is 1.25. If light of wavelength 5000 is used, the minimum separation between two points, to be seen as distinct, will be :Physics · Wave Optics · MCQ
- Q62.The stopping potential V0 (in volt) as a function of frequency () for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be: (Given: Planck’s constant (h) = 6.63 ×… Includes diagramPhysics · Dual Nature of Radiation · MCQ
- Q63.A uniform rod of length is being rotated in a horizontal plane with a constant angular speed about an axis passing through one of its ends. If the tension generated in the rod due to rotation is T(x) at a distance x from the axis,…Physics · Rotational Motion · MCQ
- Q64.A thin ring of 10 cm radius carries a uniformly distributed charge. The ring rotates at a constant angular speed of 40 rad s–1 about its axis, perpendicular to its plane. If the magnetic field at its centre is 3.8 × 10–9 T, then the…Physics · Magnetics · MCQ
- Q65.Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and carries charge Q. At its centre is a dipole as shown. In this case : Includes diagramPhysics · Electrostatics · MCQ
- Q66.A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R from it. If t1 and t2 are the values of the time taken by it to hit the target in two possible ways, the product…Physics · Motion in A Plane · MCQ
- Q67.A circular disc of radius b has a hole of radius a at its centre (see figure). If the mass per unit area of the disc varies as , then the radius of gyration of the disc about its axis passing… Includes diagramPhysics · Rotational Motion · MCQ
- Q68.An excited He+ ion emits two photons in succession, with wavelengths 108.5 nm and 30.4 nm, in making a transition to ground state. The quantum number n, corresponding to its initial excited state is (for photon of wavelength ,…Physics · Atoms and Nuclei · MCQ
- Q69.A progressive wave travelling along the positive x-direction is represented by y(x,t) = Asin(kx – t + ). Its snapshot at t = 0 is given in the figure. For this wave, the phase is : Includes diagramPhysics · Waves · MCQ
- Q70.A man (mass = 50 kg) and his son (mass = 20 kg) are standing on a frictionless surface facing each other. The man pushes his son so that he starts moving at a speed of 0.70 ms–1 with respect to the man. The speed of the man with respect to…Physics · Center of Mass · MCQ
- Q71.When M1 gram of ice at –10oC (specific heat = 0.5 cal g–1 oC–1 ) is added to M2 gram of water at 50C, finally no ice is left and the water is at 0°C. The value of latent heat of ice, in cal g–1 is :Physics · Heat and Thermodynamics · MCQ