Physics · 2021 · 27 Aug · Shift 1
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 · 2021 · 27 Aug · Shift 1
25 questions from this JEE Main paper
Electrostatics1 questionsUnits and Measurements2 questionsVector Algebra1 questionsHeat and Thermodynamics3 questionsGeometrical Optics2 questionsCircular Motion1 questionsCapacitor1 questionsRotational Motion1 questionsDual Nature of Radiation1 questionsElectromagnetic Induction1 questionsMagnetics2 questionsProperties of Matter1 questionsElectromagnetic Waves1 questionsCurrent Electricity2 questionsSimple Harmonic Motion1 questionsGravitation1 questionsAlternating Current1 questionsMotion in A Straight Line1 questionsWork Power and Energy1 questions
- Q41.A uniformly charged disc of radius R having surface charge density is placed in the xy plane with its center at the origin. Find the electric field intensity along the z-axis at a distance Z from origin :-Physics · Electrostatics · MCQ
- Q42.Which of the following is not a dimensionless quantity?Physics · Units and Measurements · MCQ
- Q43.If E and H represents the intensity of electric field and magnetising field respectively, then the unit of E/H will be :Physics · Units and Measurements · MCQ
- Q44.The resultant of these forces and is approximately .......... N. [Take , Given … Includes diagramPhysics · Vector Algebra · MCQ
- Q45.A balloon carries a total load of 185 kg at normal pressure and temperature of 27 C. What load will the balloon carry on rising to a height at which the barometric pressure is 45 cm of Hg and the temperature is 7 C.…Physics · Heat and Thermodynamics · MCQ
- Q46.An object is placed beyond the centre of curvature C of the given concave mirror. If the distance of the object is d1 from C and the distance of the image formed is d2 from C, the radius of curvature of this mirror is :Physics · Geometrical Optics · MCQ
- Q47.A huge circular arc of length 4.4 ly subtends an angle '4s' at the centre of the circle. How long it would take for a body to complete 4 revolution if its speed is 8 AU per second? Given : 1 ly = 9.46 1015 m 1 AU = 1.5 …Physics · Circular Motion · MCQ
- Q48.Calculate the amount of charge on capacitor of 4 F. The internal resistance of battery is 1 : Includes diagramPhysics · Capacitor · MCQ
- Q49.Moment of inertia of a square plate of side l about the axis passing through one of the corner and perpendicular to the plane of square plate is given by :Physics · Rotational Motion · MCQ
- Q50.An ideal gas is expanding such that PT3 = constant. The coefficient of volume expansion of the gas is :Physics · Heat and Thermodynamics · MCQ
- Q51.In a photoelectric experiment, increasing the intensity of incident light :Physics · Dual Nature of Radiation · MCQ
- Q52.A bar magnet is passing through a conducting loop of radius R with velocity . The radius of the bar magnet is such that it just passes through the loop. The induced e.m.f. in the loop can be represented by the approximate curve : Includes diagramPhysics · Electromagnetic Induction · MCQ
- Q53.Two ions of masses 4 amu and 16 amu have charges +2e and +3e respectively. These ions pass through the region of constant perpendicular magnetic field. The kinetic energy of both ions is same. Then :Physics · Magnetics · MCQ
- Q54.Find the distance of the image from object O, formed by the combination of lenses in the figure : Includes diagramPhysics · Geometrical Optics · MCQ
- Q55.In Millikan's oil drop experiment, what is viscous force acting on an uncharged drop of radius 2.0 10 5 m and density 1.2 103 kgm 3 ? Take viscosity of liquid = 1.8 10 5 Nsm 2. (Neglect buoyancy…Physics · Properties of Matter · MCQ
- Q56.Electric field in a plane electromagnetic wave is given by E = 50 sin(500x 10 1010 t) V/m The velocity of electromagnetic wave in this medium is : (Given C = speed of light in vacuum)Physics · Electromagnetic Waves · MCQ
- Q57.Five identical cells each of internal resistance 1 and emf 5V are connected in series and in parallel with an external resistance 'R'. For what value of 'R', current in series and parallel combination will remain the same?Physics · Current Electricity · MCQ
- Q58.The variation of displacement with time of a particle executing free simple harmonic motion is shown in the figure. The potential energy U(x) versus time (t) plot of the particle is correctly shown in figure : Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q59.A body of mass (2M) splits into four masses (m, M m, m, M m}, which are rearranged to form a square as shown in the figure. The ratio of for which, the gravitational potential energy of the system becomes maximum is x… Includes diagramPhysics · Gravitation · Numerical
- Q60.The alternating current is given by The r.m.s. value of of this current is ................. A.Physics · Alternating Current · Numerical
- Q61.A uniform conducting wire of length is 24a, and resistance R is wound up as a current carrying coil in the shape of an equilateral triangle of side 'a' and then in the form of a square of side 'a'. The coil is connected to a voltage source…Physics · Magnetics · Numerical
- Q62.First, a set of n equal resistors of 10 each are connected in series to a battery of emf 20V and internal resistance 10 . A current I is observed to flow. Then, the n resistors are connected in parallel to the same…Physics · Current Electricity · Numerical
- Q63.If the velocity of a body related to displacement x is given by m/s, then the acceleration of the body is .................... m/s2.Physics · Motion in A Straight Line · Numerical
- Q64.A rod CD of thermal resistance 10.0 KW 1 is joined at the middle of an identical rod AB as shown in figure. The end A, B and D are maintained at 200 C, 100 C and 125 C respectively. The heat current in CD is… Includes diagramPhysics · Heat and Thermodynamics · Numerical
- Q65.Two persons A and B perform same amount of work in moving a body through a certain distance d with application of forces acting at angle 45 and 60 with the direction of displacement respectively. The ratio of force…Physics · Work Power and Energy · Numerical