Physics · 2020 · 2 Sep · Shift 2
23 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 · 2020 · 2 Sep · Shift 2
23 questions from this JEE Main paper
Alternating Current1 questionsElectronic Devices1 questionsElectrostatics2 questionsRotational Motion1 questionsGravitation1 questionsDual Nature of Radiation1 questionsCapacitor2 questionsMagnetics2 questionsProperties of Matter2 questionsSimple Harmonic Motion1 questionsUnits and Measurements1 questionsAtoms and Nuclei1 questionsHeat and Thermodynamics2 questionsWave Optics1 questionsGeometrical Optics1 questionsElectromagnetic Waves1 questionsCenter of Mass2 questions
- Q43.An inductance coil has a reactance of 100 . When an AC signal of frequency 1000 Hz is applied to the coil, the applied voltage leads the current by 45o. The self-inductance of the coil isPhysics · Alternating Current · MCQ
- Q44.In the following digital circuit, what will be the output at ‘Z’, when the input (A, B) are (1, 0), (0, 0), (1, 1,), (0, 1) Includes diagramPhysics · Electronic Devices · MCQ
- Q45.A charge Q is distributed over two concentric conducting thin spherical shells radii r and R (R > r). If the surface charge densities on the two shells are equal, the electric potential at the common centre is : Includes diagramPhysics · Electrostatics · MCQ
- Q46.Two uniform circular discs are rotating independently in the same direction around their common axis passing through their centres. The moment of inertia and angular velocity of the first disc are 0.1 kg-m2 and 10 rad s–1 respectively…Physics · Rotational Motion · MCQ
- Q47.A small point mass carrying some positive charge on it, is released from the edge of a table. There is a uniform electric field in this region in the horizontal direction. Which of the following options then correctly describe the… Includes diagramPhysics · Electrostatics · MCQ
- Q48.The height ‘h’ at which the weight of a body will be the same as that at the same depth ‘h’ from the surface of the earth is (Radius of the earth is R and effect of the rotation of the earth is neglected)Physics · Gravitation · MCQ
- Q49.A particle is moving 5 times as fast as an electron. The ratio of the de-Broglie wavelength of the particle to that of the electron is 1.878 10–4. The mass of the particle is close toPhysics · Dual Nature of Radiation · MCQ
- Q50.A 10 F capacitor is fully charged to a potential difference of 50 V. After removing the source voltage it is connected to an uncharged capacitor in parallel. Now the potential difference across them becomes 20 V. The capacitance of…Physics · Capacitor · MCQ
- Q51.A wire carrying current I is bent in the shape ABCDEFA as shown, where rectangle ABCDA and ADEFA are perpendicular to each other. If the sides of the rectangles are of lengths a and b, then the magnitude and direction of magnetic moment of… Includes diagramPhysics · Magnetics · MCQ
- Q52.A capillary tube made of glass of radius 0.15 mm is dipped vertically in a beaker filled with methylene iodide (surface tension = 0.05 Nm–1, density = 667 kg m–3) which rises to height h in the tube. It is observed that the two tangents…Physics · Properties of Matter · MCQ
- Q53.The figure shows a region of length ‘l’ with a uniform magnetic field of 0.3 T in it and a proton entering the region with velocity 4 105 ms–1 making an angle 60o with the field. If the proton completes 10 revolution by the time… Includes diagramPhysics · Magnetics · MCQ
- Q54.The displacement time graph of a particle executing S.H.M is given in figure : (sketch is schematic and not to scale) Which of the following statements is/are true for this motion? (A) The force is zero at t = (B) The… Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q55.If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for energy isPhysics · Units and Measurements · MCQ
- Q56.In a hydrogen atom the electron makes a transition from (n + 1)th level to the nth level. If n >> 1, the frequency of radiation emitted is proportional to :Physics · Atoms and Nuclei · MCQ
- Q57.An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true? (A) the mean free path of the molecules decreases. (B) the mean collision time between the molecules decreases.…Physics · Heat and Thermodynamics · MCQ
- Q58.When the temperature of a metal wire is increased from 0oC to 10oC, its length increases by 0.02%. The percentage change in its mass density will be closest to :Physics · Heat and Thermodynamics · MCQ
- Q59.In a Young’s double slit experiment, 16 fringes are observed in a certain segment of the screen when light of a wavelength 700 nm is used. If the wavelength of light is changed to 400 nm, the number of fringes observed in the same segment…Physics · Wave Optics · MCQ
- Q60.A light ray enters a solid glass sphere of refractive index = at an angle of incidence 60o. The ray is both reflected and refracted at the farther surface of the sphere. The angle (in degrees) between the reflected and…Physics · Geometrical Optics · Numerical
- Q61.An ideal cell of emf 10 V is connected in circuit shown in figure. Each resistance is 2 . The potential difference (in V) across the capacitor when it is fully charged is . Includes diagramPhysics · Capacitor · Numerical
- Q62.In a plane electromagnetic wave, the directions of electric field and magnetic field are represented by and , respectively. What is the unit vector along direction of propagation of the wave?Physics · Electromagnetic Waves · MCQ
- Q63.A square shaped hole of side l = is carved out at a distance d = from the centre ‘O’ of a uniform circular disk of radius a. If the distance of the centre of mass of the remaining portion form O is $- {a \over… Includes diagramPhysics · Center of Mass · Numerical
- Q64.A particle of mass m is moving along the x-axis with initial velocity . It collides elastically with a particle of mass 10 m at rest and then moves with half its initial kinetic energy (see figure). If … Includes diagramPhysics · Center of Mass · Numerical
- Q65.A wire of density 9 10–3 kg cm–3 is stretched between two clamps 1 m apart. The resulting strain in the wire is 4.9 10–4. The lowest frequency of the transverse vibrations in the wire is : (Young’s modulus of wire Y = 9 …Physics · Properties of Matter · Numerical