Physics questions
20027 published questions with worked solutions.
- In a Telescope, compared to the eyepiece lens the objective lens has
- The energy, E, of a photon can be expressed as E = hf where f is the frequency and h is Planck's constant. The dimensions of h...
- The work done by the force acting on an object is zero if the displacement of the object
- The magnetic field inside a current carrying very long solenoid is
- Which one of the following instruments can be used to measure –250°C temperature ?
- The quantity of heat needed to change unit mass of a substance from liquid to vapour without changing the temperature, is called
- Which one of the following statements about surface tension is correct ?
- A body sinks in water when
- Bottom of a tank containing water appears to be raised. It is due to
- Which one of the following radiations has longer wavelength ?
- The energy is always conserved for a system which is
- Suppose, a ball of mass M is thrown upwards from a point A and it reaches up to the highest point B and returns back to point A,...
- A pendulum of length L oscillates with an angular amplitude of = 60^ and time period T. Let T_0 = 2 L g be the time period for...
- Two forces of equal magnitude simultaneously act at a point. It is observed that the resultant force is equal in magnitude to the...
- A solid of mass m has temperature-dependent specific heat as C(T) = C_0 + T, where C_0 and are constants. The solid is heated...
- In a certain process, the relation between pressure (P) and volume (V), for an ideal gas, is given by PV^2 = constant . If the...
- For an ideal gas, a process is described by P = kT, where k is a constant. If the molar heat capacity for this process is C, then...
- For an object in gravitational field, the gravitational potential is the same at two points A and B, but the gravitational field...
- The position vector of a particle is given by r = 3 ,t^2 , i + 2 ,t , j + 5 , k . Which one of the following statements is...
- A ball is dropped from rest from height h above the ground in frame S (the Earth's frame). Another frame S' is moving upwards...