Physics questions
20027 published questions with worked solutions.
- A block of mass ' m ' is connected to another block of mass ' M ' by a spring (massless) of spring constant ' k '. The blocks are...
- A body weighing 13 kg is suspended by two strings 5 m and 12 m long, their other ends being fastened to the extremities of a rod...
- A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumferences of the discs...
- A round uniform body of radius R, mass M and moment of inertia 'I', rolls down (without slipping) an inclined plane making an...
- Angular momentum of the particle rotating with a central force is constant due to
- If C_p and C_v denote the specific heats of nitrogen per unit mass at constant pressure and constant volume respectively, then
- The displacement of an object attached to a spring and executing simple harmonic motion is given by x = 2 10^ -2 t metres. The...
- A point mass oscillates along the x-axis according to the law x = x_0 ( t - /4). If the acceleration of the particle is written...
- A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
- An electric charge 10^ -3 C is placed at the origin (0, 0) of X - Y co-ordinate system. Two points A and B are situated at ( 2,...
- The potential at a point x (measured in m ) due to some charges situated on the x-axis is given by V(x) = 20/ (x^2 - 4 ) Volts....
- A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the...
- A parallel plate condenser with a dielectric of dielectric constant K between the plates has a capacity C and is charged to a...
- A long straight wire of radius ' a ' caries a steady current i. The current is uniformly distributed across its cross section....
- A current I flows along the length of an infinitely long, straight, thin walled pipe. Then
- A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields E and B with a velocity v...
- A charged particle moves through a magnetic field perpendicular to its direction. Then
- Two identical conducting wires AOB and COD are placed at right angles to each other. The wire AOB carries an electric current I_1...
- Two lenses of power −15 D and +5 D are in contact with each other. The focal length of the combination is
- In a Young's double slit experiment the intensity at a point where the path difference is 6 ( being the wavelength of the light...