Physics question and answers for July 07, 2024
- Q 4 A flux of 25mWb links with a 1500 turn coil when a current of 34 passes through the coil Calculate a the inductance of the coil b the energy...
- Q he po of time is given by R 4 sin 2nt i 4 cos 2nt j Where R is in meters t is in seconds and i and denote unit...
- Q The current i at time t 0 and t respectively for the given circuit is B 18E 55 5E 18 5E 18E 18 55 5E 10E 18 33 10 5E...
- Q The figure shows a system consisting of i a ring of outer radius 3R rolling clockwise without slipping on a horizontal surface with angular speed and ii an inner disc...
- Q galvanometer Now the first battery E is replaced by second battery E for working by making K open and K closed The galvanometer gives the null deflection at J The...
- Q Find the maximum kinetic energy in eV of the photoelectron liberated from the surface of lithium work function radiation 2 15 eV by electromagnetic whose electric component varies with time...
- Q 1 An objective lens consist of i Short aperture and short focal length ii Large aperture and large focal length iii Short aperture and large focal length iv Large aperture...
- Q 1 The string shown in the figure is passing over small smooth pulley rigidly attached to trolley A If speed of trolley is constant and equal to VA Speed and...
- Q A plane mirror is placed at a distance d from the screen on which spot is formed Ray is kept constant and mirror is rotated with constant angular velocity Then...
- Q 8 Why is it necessary to introduce a cylindrical soft iron core inside the coil of a galvanometer 7 9 0 77 i when the magnetic field is radial as...
- Q 0103 a mass of A particle having a 5 10 C The particle is given a of 10 ms in the presence of electric field kg carries a charge of...
- Q 21 If equivalent resistance between points A and X is 5 92 and equivalent resistance between A and B is 10 2 then find R A 100 B 1 222...
- Q For the circuit Figure 1 take 300 V R 4 0 kn R 6 0 kn and assume the capacitor is initially uncharged Figure R ww ww R 1 of...
- Q Positive rays travelling from west to east enter in a region of electric field directed vertically upwards The deflection of the rays is towards Neglect effect of gravity 1 Vertically...
- Q A dielectric slab of thickness d 2 and dielectric constant 2 is inserted in capacitor as shown in figure If capacitor is connected to 10 V emf battery then find...
- Q When a thin convex and a thin concave lens are placed in closed contact their equivalent focal length is 50 cm The ratio of power of convex and concave lens...
- Q A long straight conductor carrying current I is fixed on a smooth plane A circular loop is placed on the same plane as shown in the figure If the current...
- Q amina is made by removing a small disc of diameter 2R from a bigger disc of uniform mass density and radius 2R as shown in the figure The moment of...
- Q x An infinitely long solid cylinder of radius R has a uniform volum spherical cavity of radius R 2 with its centre on the axis of the cylinder as shown...
- Q Solution m Mass of system M m Force on system F Acceleration of system a F M m F Force on system Mass of system Vedanti JEE Lets first find...
- Q If Q charge is distributed inside the material of a shell of inner and outer radii R and then non conducting R respectively Q P 1 Electric field inside shell...
- Q 27 similar drops of mercury are maintained at 10V each All these spheric drops combine into a single big drop The potential energy of the bigger drop is times that...
- Q A conducting rod of length L rotating in x z plane with constant angular velocity about an axis yy in an uniform magnetic field B as shown in the figure...
- Q 34 An electron and a proton are held 2 m apart The midpoint between the electron and the proton sets the origin of a co ordinate system with the x...
- Q distance from a long line charge linear charge density 2 as shown in the figure The value of electric force experienced by dipole varies with distance ras 1 4 2...
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