Physics questions
20027 published questions with worked solutions.
- If g is the acceleration due to gravity on the earth's surface, the gain in the potential energy of object of mass m raised from...
- Suppose the gravitational force varies inversely as the nth power of distance. Then the time period planet in circular orbit of...
- Spherical balls of radius R are falling in a viscous fluid of viscosity with a velocity v. The retarding viscous force acting on...
- If two soap bubbles of different radii are connected by a tube,
- If the temperature of the sun were to increase from T to 2T and its radius from R to 2R, then the ratio of the radiant energy...
- The thermistors are usually made of
- Time taken by a 836 W heater to heat one litre of water from 10^ to 40^ is
- Which of the following statements is correct for any thermodynamic system?
- One mole of ideal monoatomic gas ( = 5/30) is mixed with one mole of diatomic gas ( = 7/5). What is for the mixture? denotes the...
- Two thermally insulated vessels 1 and 2 are filled with air at temperatures (T_1, T_2), volume (V_1, V_2) and pressure (P_1, P_2)...
- The bob of a simple pendulum executes simple harmonic motion in water with a period t, while the period of oscillation of the bob...
- A particle at the end of a spring executes simple harmonic motion with a period t_1, while the corresponding period for another...
- The total energy of particle, executing simple harmonic motion is
- The displacement y of a particle in a medium can be expressed as y = 10^ -6 (110t + 20x + /4)m, where t is in seconds and x in...
- Two spherical conductor B and C having equal radii and carrying equal charges in them repel each other with a force F when kept...
- Four charges equal to -Q are placed at the four corners of a square and a charge q is at its centre. If the system is in...
- A charged oil drop is suspended in a uniform field of 3 10^4 V/m so that it neither falls nor rises. The charge on the drop will...
- An -particle of energy 5MeV is scattered through 180^ by a fixed uranium nucleus. The distance of the closest approach is of the...
- The resistance of the series combination of two resistances is S. When they are joined in parallel through total resistance is P....
- An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the length...