Physics questions
20027 published questions with worked solutions.
- A body of mass 2 kg is moving along x-direction such that its displacement as function of time is given by x(t) = t^2 + t + m,...
- An electromagnetic wave of frequency 100 MHz propagates through a medium of conductivity, = 10 mho/m. The ratio of maximum...
- The terminal velocity of a metallic ball of radius 6 mm in a viscous fluid is 20 cm/s. The terminal velocity of another ball of...
- A particle having electric charge 3 10^ -19 C and mass 6 10^ -27 kg is accelerated by applying an electric potential of 1.21 V....
- In a Young's double slit experiment set up, the two slits are kept 0.4 mm apart and screen is placed at 1 m from slits. If a thin...
- A diatomic gas ( = 1.4) does 100 J of work when it is expanded isobarically. Then the heat given to the gas _____ J.
- A solid sphere of mass 5 kg and radius 10 cm is kept in contact with another solid sphere of mass 10 kg and radius 20 cm. The...
- 7.9 MeV -particle scatters from a target material of atomic number 79. From the given data the estimated diameter of nuclei of...
- The escape velocity from a spherical planet A is 10 km/s. The escape velocity from another planet B whose density and radius are...
- A projectile is thrown upward at an angle 60^ with the horizontal. The speed of the projectile is 20 m/s when its direction of...
- Given below are two statements: Statement I: Pressure of fluid is exerted only on a solid surface in contact as the...
- Net gravitational force at the centre of a square is found to be F_1 when four particles having mass M, 2M, 3M and 4M are placed...
- The minimum frequency of photon required to break a particle of mass 15.348 amu into 4 particles is _____ kHz. [mass of He...
- A cylindrical tube AB of length , closed at both ends contains an ideal gas of 1 mol having molecular weight M. The tube is...
- Rods x and y of equal dimensions but of different materials are joined as shown in figure. Temperatures of end points A and F are...
- Consider an equilateral prism (refractive index 2 ). A ray of light is incident on its one surface at a certain angle i. If the...
- The volume of an ideal gas increases 8 times and temperature becomes (1/4)^ th of initial temperature during a reversible change....
- The electric field of a plane electromagnetic wave, travelling in an unknown non-magnetic medium is given by, E_y = 20 (3 10^6x -...
- A parallel beam of light travelling in air (refractive index 1.0) is incident on a convex spherical glass surface of radius of...
- A circular disc has radius R_1 and thickness T_1. Another circular disc made of the same material has radius R_2 and thickness...