Physics questions
20027 published questions with worked solutions.
- A constant power machine pulls a block on a smooth horizontal surface. Which one of the following correctly describes the...
- A 5 g piece of ice at –20 °C is put into m kg of water at 30 °C temperature. The heat is exchanged only between the ice and the...
- A very large container consists of an ideal gas. The speed of sound in the gas is x. When the pressure of the gas is doubled...
- An object is placed far beyond the centre of curvature of a concave mirror. The object then starts accelerating towards the...
- A particle is moved from point X to point Y under a force field. The work done depends only on the initial and final speeds....
- One year at a planet is 8 times as large as compared to the one year at the Earth. Which one of the following is correct about...
- A periscope uses two plane mirrors inclined at 45°. If the tube of the periscope is filled with a complete transparent liquid of...
- It has been observed that a mirror always forms the image between the pole and the focus, irrespective of the location of the...
- What is the upward force acting on a skydiver of mass 60 kg who is falling at a uniform speed of 2 m/s?
- With respect to electromagnetic waves, the human eye is sensitive to
- A bicycle racing track is a level circular road of radius 10 m. Three cyclists P, Q and R with identical cycles are cycling on...
- The bob of a simple pendulum is displaced from its mean position and then released from rest 0·20 m above its mean position. What...
- A tennis ball of mass 350 g is thrown vertically upwards at a speed of 4 m/s. If M is the maximum gravitational potential energy...
- Which of the following is correct regarding the total internal reflection at the interface between two different optical media ?
- Consider the following statements : I. The weight of an object is the same everywhere on the surface of the Earth, but its...
- While pouring water slowly from a jug, a general observation is that a water layer usually flows along the side of the jug. Which...
- A fish is at a depth d in water of refractive index 4/3. If a transparent slab of refractive index 3/2 and thickness d/2 is...
- A particle of mass m moves along x-direction under the force F(x) = F_0 (1 - x L ) for 0 x L. If the particle starts from rest at...
- On a rainy day, rain drops fall vertically with speed v. An observer is moving towards east with speed v, while another observer...
- What is the minimum horizontal speed given to the bob of a simple pendulum of length 50 cm so that it describes a complete circle...