Physics · 2021 · 31 Aug · Shift 2
29 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 · 31 Aug · Shift 2
29 questions from this JEE Main paper
Properties of Matter1 questionsMagnetics2 questionsRotational Motion1 questionsVector Algebra1 questionsDual Nature of Radiation2 questionsHeat and Thermodynamics3 questionsElectronic Devices2 questionsSimple Harmonic Motion2 questionsLaws of Motion1 questionsUnits and Measurements2 questionsElectromagnetic Waves1 questionsCurrent Electricity2 questionsElectrostatics1 questionsWork Power and Energy1 questionsElectromagnetic Induction1 questionsGravitation1 questionsCapacitor1 questionsMotion in A Straight Line1 questionsWave Optics1 questionsAlternating Current1 questionsGeometrical Optics1 questions
- Q43.Four identical hollow cylindrical columns of mild steel support a big structure of mass 50 103 kg. The inner and outer radii of each column are 50 cm and 100 cm respectively. Assuming uniform local distribution, calculate the…Physics · Properties of Matter · MCQ
- Q44.A current of 1.5 A is flowing through a triangle, of side 9 cm each. The magnetic field at the centroid of the triangle is : (Assume that the current is flowing in the clockwise direction.)Physics · Magnetics · MCQ
- Q45.A system consists of two identical spheres each of mass 1.5 kg and radius 50 cm at the end of light rod. The distance between the centres of the two spheres is 5 m. What will be the moment of inertia of the system about an axis…Physics · Rotational Motion · MCQ
- Q46.Statement I : Two forces and where , when act at an angle 1 to each…Physics · Vector Algebra · MCQ
- Q47.A free electron of 2.6 eV energy collides with a H+ ion. This results in the formation of a hydrogen atom in the first excited state and a photon is released. Find the frequency of the emitted photon. (h = 6.6 10 34 Js)Physics · Dual Nature of Radiation · MCQ
- Q48.Two thin metallic spherical shells of radii r1 and r2 (r1 < r2) are placed with their centres coinciding. A material of thermal conductivity K is filled in the space between the shells. The inner shell is maintained at temperature …Physics · Heat and Thermodynamics · MCQ
- Q49.If VA and VB are the input voltages (either 5V or 0V) and V0 is the output voltage then the two gates represented in the following circuit (A) and (B) are :- Includes diagramPhysics · Electronic Devices · MCQ
- Q50.Consider two separate ideal gases of electrons and protons having same number of particles. The temperature of both the gases are same. The ratio of the uncertainty in determining the position of an electron to that of a proton is…Physics · Dual Nature of Radiation · MCQ
- Q51.A bob of mass 'm' suspended by a thread of length l undergoes simple harmonic oscillations with time period T. If the bob is immersed in a liquid that has density times that of the bob and the length of the thread is…Physics · Simple Harmonic Motion · MCQ
- Q52.Statement : 1 If three forces and are represented by three sides of a triangle and ,…Physics · Laws of Motion · MCQ
- Q53.If velocity [V], time [T] and force [F] are chosen as the base quantities, the dimensions of the mass will be :Physics · Units and Measurements · MCQ
- Q54.The magnetic field vector of an electromagnetic wave is given by ; where represents unit vector along x and y-axis respectively. At t =…Physics · Electromagnetic Waves · MCQ
- Q55.The equivalent resistance of the given circuit between the terminals A and B is : Includes diagramPhysics · Current Electricity · MCQ
- Q56.Choose the incorrect statement : (1) The electric lines of force entering into a Gaussian surface provide negative flux. (2) A charge 'q' is placed at the centre of a cube. The flux through all the faces will be the same. (3) In a uniform…Physics · Electrostatics · MCQ
- Q57.A mixture of hydrogen and oxygen has volume 500 cm3, temperature 300 K, pressure 400 kPa and mass 0.76 g. The ratio of masses of oxygen to hydrogen will be :-Physics · Heat and Thermodynamics · MCQ
- Q58.A block moving horizontally on a smooth surface with a speed of 40 m/s splits into two parts with masses in the ratio of 1 : 2. If the smaller part moves at 60 m/s in the same direction, then the fractional change in kinetic energy is :-Physics · Work Power and Energy · MCQ
- Q59.A coil is placed in a magnetic field as shown below : A current is induced in the coil because is : Includes diagramPhysics · Electromagnetic Induction · MCQ
- Q60.For a body executing S.H.M. : (1) Potential energy is always equal to its K.E. (2) Average potential and kinetic energy over any given time interval are always equal. (3) Sum of the kinetic and potential energy at any point of time is…Physics · Simple Harmonic Motion · MCQ
- Q61.Statement - I : To get a steady dc output from the pulsating voltage received from a full wave rectifier we can connect a capacitor across the output parallel to the load RL. Statement - II : To get a steady dc output from the pulsating…Physics · Electronic Devices · MCQ
- Q62.If RE be the radius of Earth, then the ratio between the acceleration due to gravity at a depth 'r' below and a height 'r' above the earth surface is : (Given : r < RE)Physics · Gravitation · MCQ
- Q63.A parallel plate capacitor of capacitance 200 F is connected to a battery of 200 V. A dielectric slab of dielectric constant 2 is now inserted into the space between plates of capacitor while the battery remain connected. The change…Physics · Capacitor · Numerical
- Q64.A long solenoid with 1000 turns/m has a core material with relative permeability 500 and volume 103 cm3. If the core material is replaced by another material having relative permeability of 750 with same volume maintaining same current of…Physics · Magnetics · Numerical
- Q65.A particle is moving with constant acceleration 'a'. Following graph shows v2 versus x(displacement) plot. The acceleration of the particle is m/s2. Includes diagramPhysics · Motion in A Straight Line · Numerical
- Q66.In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away from the plane of slits. Distance between fourth bright fringes on both sides of central bright is 2.4 cm. The frequency of light used is …Physics · Wave Optics · Numerical
- Q67.The diameter of a spherical bob is measured using a vernier callipers. 9 divisions of the main scale, in the vernier callipers, are equal to 10 divisions of vernier scale. One main scale division is 1 mm. The main scale reading is 10 mm…Physics · Units and Measurements · Numerical
- Q68.A sample of gas with = 1.5 is taken through an adiabatic process in which the volume is compressed from 1200 cm3 to 300 cm3. If the initial pressure is 200 kPa. The absolute value of the workdone by the gas in the process = …Physics · Heat and Thermodynamics · Numerical
- Q69.At very high frequencies, the effective impendence of the given circuit will be . Includes diagramPhysics · Alternating Current · Numerical
- Q70.Cross-section view of a prism is the equilateral triangle ABC in the figure. The minimum deviation is observed using this prism when the angle of incidence is equal to the prism angle. The time taken by light to travel from P (midpoint of… Includes diagramPhysics · Geometrical Optics · Numerical
- Q71.A resistor dissipates 192 J of energy in 1s when a current of 4A is passed through it. Now, when the current is doubled, the amount of thermal energy dissipated in 5s in J.Physics · Current Electricity · Numerical