Physics questions
20027 published questions with worked solutions.
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. the work done by the force of gravity during the...
- A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force...
- The potential energy of a 1 kg particle free move along the x-axis is given by V(x) = ( x^4 4 - x^2 2 )J The total mechanical...
- Consider a two particle system with particles having masses m_1 and m_2. If the first particle is pushed towards the centre of...
- A force of -F k acts on O, the origin of the coordinate system. The torque about the point (1, -1)
- A thin circular ring of mass m and radius R is rotating about its axis with a constant angular velocity . Two objects each of...
- Four point masses, each of value m, are placed at the corners of a square ABCD of side . The moment of inertia through A and...
- A wire elongates by when a load W is hanged from it. If the wire goes over a pulley and two weights W each are hung at the two...
- If the terminal speed of a sphere of gold (density = 19.5 kg/m^3 ) is 0.2 m/s in a viscous liquid (density = 1.5 kg/m^3 ) of the...
- Assuming the sun to be a spherical body of radius R at a temperature of TK, evaluate the total radiant power, incident on Earth,...
- The work of 146 kJ is performed in order to compress one kilo mole of gas adiabatically and in this process the temperature of...
- Two rigid boxes containing different ideal gases are placed on a table. Box A contains one mole of nitrogen at temperature T_0,...
- Starting from the origin, a body oscillates simple harmonically with a period of 2 s. After what time will its kinetic energy be...
- The maximum velocity of a particle, executing simple harmonic motion with an amplitude 7 mm, is 4.4 m/s. The period of...
- A coin is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency . The amplitude of...
- A whistle producing sound waves of frequencies 9500 Hz and above is approaching a stationary person with speed v ms^ -1 . The...
- A string is stretched between fixed points separated by 75 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz....
- A electric dipole is placed at an angle of 30^ to a non-uniform electric field. The dipole will experience
- A material ' B ' has twice the specific resistance of ' A '. A circular wire made of ' B ' has twice the diameter of a wire made...
- The Kirchhoff's first law ( i = 0) and second law ( iR = E), where the symbols have their usual meanings, are respectively based...