Physics · 2021 · 25 Feb · 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 · 2021 · 25 Feb · Shift 1
27 questions from this JEE Main paper
Magnetics2 questionsGravitation3 questionsDual Nature of Radiation1 questionsAlternating Current3 questionsUnits and Measurements2 questionsWave Optics1 questionsMotion in A Straight Line1 questionsHeat and Thermodynamics4 questionsSimple Harmonic Motion1 questionsElectronic Devices1 questionsWaves1 questionsVector Algebra1 questionsCircular Motion1 questionsGeometrical Optics1 questionsElectromagnetic Induction1 questionsWork Power and Energy1 questionsElectrostatics2 questions
- Q46.A proton, a deuteron and an particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is and their speed is , in the ratio.Physics · Magnetics · MCQ
- Q47.A solid sphere of radius R gravitationally attracts a particle placed at 3R from its centre with a force F1. Now a spherical cavity of radius is made in the sphere (as shown in figure) and the force becomes… Includes diagramPhysics · Gravitation · MCQ
- Q48.An particle and a proton are accelerated from rest by a potential difference of 200V. After this, their de Broglie wavelengths are and p respectively. The ratio …Physics · Dual Nature of Radiation · MCQ
- Q49.The angular frequency of alternating current in a L-C-R circuit is 100 rad/s. The components connected are shown in the figure. Find the value of inductance of the coil and capacity of condenser. Includes diagramPhysics · Alternating Current · MCQ
- Q50.Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8 : 1. The radius of coil is .Physics · Magnetics · MCQ
- Q51.Match List - I with List - II : Choose the correct answer from the options given below : Includes tablePhysics · Units and Measurements · MCQ
- Q52.Two satellites A and B of masses 200 kg and 400 kg are revolving round the earth at height of 600 km and 1600 km respectively. If TA and TB are the time periods of A and B respectively then the value of TB TA : [Given : radius of earth… Includes diagramPhysics · Gravitation · MCQ
- Q53.Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio will be :Physics · Wave Optics · MCQ
- Q54.An engine of a train, moving with uniform acceleration, passes the signal-post with velocity u and the last compartment with velocity v. The velocity with which middle point of the train passes the signal post is :Physics · Motion in A Straight Line · MCQ
- Q55.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : When a rod lying freely is heated, no thermal stress is developed in it. Reason R : On heating, the length of the rod…Physics · Heat and Thermodynamics · MCQ
- Q56.The pitch of the screw gauge is 1 mm and there are 100 divisions on the circular scale. When nothing is put in between the jaws, the zero of the circular scale lies 8 divisions below the reference line. When a wire is placed between the…Physics · Units and Measurements · MCQ
- Q57.If the time period of a two meter long simple pendulum is 2s, the acceleration due to gravity at the place where pendulum is executing S.H.M. is :Physics · Simple Harmonic Motion · MCQ
- Q58.A diatomic gas, having and , is heated at constant pressure. The ratio dU : dQ : dW :Physics · Heat and Thermodynamics · MCQ
- Q59.A 5V battery is connected across the points X and Y. Assume D1 and D2 to be normal silicon diodes. Find the current supplied by the battery if the +ve terminal of the battery is connected to point X. Includes diagramPhysics · Electronic Devices · MCQ
- Q60.A student is performing the experiment of resonance column. The diameter of the column tube is 6 cm. The frequency of the tuning fork is 504 Hz. Speed of the sound at the given temperature is 336 m/s. The zero of the metre scale coincides…Physics · Waves · MCQ
- Q61.In an octagon ABCDEFGH of equal side, what is the sum of , if, … Includes diagramPhysics · Vector Algebra · MCQ
- Q62.The current (i) at time t = 0 and t = respectively for the given circuit is : Includes diagramPhysics · Alternating Current · MCQ
- Q63.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : The escape velocities of planet A and B are same. But A and B are of unequal mass. Reason R : The product of their mass…Physics · Gravitation · MCQ
- Q64.A small bob tied at one end of a thin string of length 1 m is describing a vertical circle so that the maximum and minimum tension in the string are in the ratio 5 : 1. The velocity of the bob at the highest position is …Physics · Circular Motion · Numerical
- Q65.A monoatomic gas of mass 4.0 u is kept in an insulated container. Container is moving with velocity 30 m/s. If container is suddenly stopped then change in temperature of the gas (R = gas constant) is . Value of x is …Physics · Heat and Thermodynamics · Numerical
- Q66.The same size images are formed by a convex lens when the object is placed at 20 cm or at 10 cm from the lens. The focal length of convex lens is cm.Physics · Geometrical Optics · Numerical
- Q67.A coil of inductance 2 H having negligible resistance is connected to a source of supply whose voltage is given by V = 3t volt. (where t is in second). If the voltage is applied when t = 0, then the energy stored in the coil after 4 s is …Physics · Electromagnetic Induction · Numerical
- Q68.The potential energy (U) of a diatomic molecule is a function dependent on r (interatomic distance) as where, and are positive constants. The equilibrium…Physics · Work Power and Energy · Numerical
- Q69.The electric field in a region is given by . The ratio of flux of reported field through the rectangular surface of area 0.2 m2…Physics · Electrostatics · Numerical
- Q70.In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100 C to 300 C will be nR, where n denotes number of…Physics · Heat and Thermodynamics · Numerical
- Q71.512 identical drops of mercury are charged to a potential of 2V each. The drops are joined to form a single drop. The potential of this drop is V.Physics · Electrostatics · Numerical
- Q72.A transmitting station releases waves of wavelength 960 m. A capacitor of 2.56 F is used in the resonant circuit. The self inductance of coil necessary for resonance is 10 8 H.Physics · Alternating Current · Numerical