Physics · 2021 · 27 Jul · 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 · 2021 · 27 Jul · Shift 2
27 questions from this JEE Main paper
Dual Nature of Radiation1 questionsGeometrical Optics1 questionsProperties of Matter2 questionsHeat and Thermodynamics1 questionsSimple Harmonic Motion2 questionsCapacitor2 questionsWork Power and Energy3 questionsAlternating Current1 questionsElectronic Devices1 questionsMagnetics1 questionsGravitation2 questionsElectrostatics1 questionsUnits and Measurements1 questionsLaws of Motion1 questionsCurrent Electricity2 questionsRotational Motion1 questionsWave Optics1 questionsElectromagnetic Induction1 questionsMotion in A Plane1 questionsAtoms and Nuclei1 questions
- Q45.An electron and proton are separated by a large distance. The electron starts approaching the proton with energy 3 eV. The proton captures the electron and forms a hydrogen atom in second excited state. The resulting photon is incident on…Physics · Dual Nature of Radiation · MCQ
- Q46.The expected graphical representation of the variation of angle of deviation '' with angle of incidence 'i' in a prism is :Physics · Geometrical Optics · MCQ
- Q47.A raindrop with radius R = 0.2 mm falls from a cloud at a height h = 2000 m above the ground. Assume that the drop is spherical throughout its fall and the force of buoyance may be neglected, then the terminal speed attained by the…Physics · Properties of Matter · MCQ
- Q48.One mole of an ideal gas is taken through an adiabatic process where the temperature rises from 27 C to 37 C. If the ideal gas is composed of polyatomic molecule that has 4 vibrational modes, which of the following is…Physics · Heat and Thermodynamics · MCQ
- Q49.An object of mass 0.5 kg is executing simple harmonic motion. It amplitude is 5 cm and time period (T) is 0.2 s. What will be the potential energy of the object at an instant starting from mean position. Assume that the…Physics · Simple Harmonic Motion · MCQ
- Q50.Match List I with List II. Choose the correct answer from the options given below Includes tablePhysics · Capacitor · MCQ
- Q51.Given below is the plot of a potential energy function U(x) for a system, in which a particle is in one dimensional motion, while a conservative force F(x) acts on it. Suppose that Emech = 8 J, the incorrect statement for this system is :… Includes diagramPhysics · Work Power and Energy · MCQ
- Q52.A 100 resistance, a 0.1 F capacitor and an inductor are connected in series across a 250 V supply at variable frequency. Calculate the value of inductance of inductor at which resonance will occur. Given that the resonant…Physics · Alternating Current · MCQ
- Q53.A simple pendulum of mass 'm', length 'l' and charge '+ q' suspended in the electric field produced by two conducting parallel plates as shown. The value of deflection of pendulum in equilibrium position will be Includes diagramPhysics · Capacitor · MCQ
- Q54.Find the truth table for the function Y of A and B represented in the following figure. Includes diagramPhysics · Electronic Devices · MCQ
- Q55.Figure A and B shown to long straight wires of circular cross-section (a and b with a < b), carrying current I which is uniformly distributed across the cross-section. The magnitude of magnetic field B varies with radius r and can be… Includes diagramPhysics · Magnetics · MCQ
- Q56.Two identical particles of mass 1 kg each go round a circle of radius R, under the action of their mutual gravitational attraction. The angular speed of each particle is :Physics · Gravitation · MCQ
- Q57.What will be the magnitude of electric field at point O as shown in the figure? Each side of the figure is l and perpendicular to each other? Includes diagramPhysics · Electrostatics · MCQ
- Q58.A physical quantity 'y' is represented by the formula If the percentage errors found in y, m, r, l and g are 18, 1, 0.5, 4 and p respectively, then find the value of x and p.Physics · Units and Measurements · MCQ
- Q59.An automobile of mass 'm' accelerates starting from origin and initially at rest, while the engine supplies constant power P. The position is given as a function of time by :Physics · Work Power and Energy · MCQ
- Q60.The planet Mars has two moons, if one of them has a period 7 hours, 30 minutes and an orbital radius of 9.0 103 km. Find the mass of Mars. …Physics · Gravitation · MCQ
- Q61.A particle of mass M originally at rest is subjected to a force whose direction is constant but magnitude varies with time according to the relation Where F0 and T…Physics · Laws of Motion · MCQ
- Q62.The resistance of a conductor at 15 C is 16 and at 100 C is 20 . What will be the temperature coefficient of resistance of the conductor?Physics · Current Electricity · MCQ
- Q63.In the given figure, two wheels P and Q are connected by a belt B. The radius of P is three times as that of Q. In case of same rotational kinetic energy, the ratio of rotational inertias will… Includes diagramPhysics · Rotational Motion · Numerical
- Q64.The difference in the number of waves when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is mm. [Refractive index of air = 1.0003, wavelength…Physics · Wave Optics · Numerical
- Q65.In the given figure the magnetic flux through the loop increases according to the relation B(t) = 10t2 + 20t, where B is in milliwebers and t is in seconds. The magnitude of current through R = 2 resistor at t = 5 s… Includes diagramPhysics · Electromagnetic Induction · Numerical
- Q66.A particle executes simple harmonic motion represented by displacement function as x(t) = A sin( t + ) If the position and velocity of the particle at t = 0 s are 2 cm and 2 cm s 1 respectively, then its…Physics · Simple Harmonic Motion · Numerical
- Q67.A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30 with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle with the line AB should be … Includes diagramPhysics · Motion in A Plane · Numerical
- Q68.For the circuit shown, the value of current at time t = 3.2 s will be A. [Voltage distribution V(t) is shown by Fig. (1) and the circuit is shown in Fig. (2)] Includes diagramPhysics · Current Electricity · Numerical
- Q69.A small block slides down from the top of hemisphere of radius R = 3 m as shown in the figure. The height 'h' at which the block will lose contact with the surface of the sphere is m. (Assume there is no friction… Includes diagramPhysics · Work Power and Energy · Numerical
- Q70.The K X-ray of molybdenum has wavelength 0.071 nm. If the energy of a molybdenum atoms with a K electron knocked out is 27.5 keV, the energy of this atom when an L electron is knocked out will be keV.…Physics · Atoms and Nuclei · Numerical
- Q71.The water is filled upto height of 12 m in a tank having vertical sidewalls. A hole is made in one of the walls at a depth 'h' below the water level. The value of 'h' for which the emerging steam of water strikes the ground at the maximum…Physics · Properties of Matter · Numerical