Physics questions
20027 published questions with worked solutions.
- A air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s ^ -2 . The density of water is 1 gm cm ^ -3 and water...
- Choose the correct option relating wavelengths of different parts of electromagnetic wave spectrum :
- Starting from the origin at time t = 0, with initial velocity 5 j ms ^ -1 , a particle moves in the x-y plane with a constant...
- Dimensional formula for thermal conductivity is (here K denotes the temperature)
- The specific heat of water = 4200 J kg ^ -1 K ^ -1 and the latent heat of ice = 3.4 10^5 J kg ^ -1 . 100 grams of ice at 0ºC is...
- A small bar magnet placed with its axis at 30º with an external field of 0.06 T experiences a torque of 0.018 Nm. the minimum...Not in JEE Advanced syllabus
- A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V, the...
- A beam of plane polarised light of large cross-sectional area and uniform intensity of 3.3 Wm ^ -2 falls normally on a polariser...
- In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal length of...
- A closed vessel contains 0.1 mole of a monatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the...
- A circular disc of mass M and radius R is rotating about its axis with angular speed _1. If another stationary disc having radius...
- A quantity x is given by (IF v^2/WL^4) in terms of moment of inertia I, force F, velocity v, work W and Length L. The dimensional...
- A series L-R circuit is connected to a battery of emf V. If the circuit is switched on at t = 0, then the time at which the...
- Find the Binding energy per neucleon for ^ 120 _ 50 Sn. Mass of proton m_p = 1.00783 U, mass of neutron m_n = 1.00867 U and mass...
- A body is moving in a low circular orbit about a planet of mass M and radius R. The radius of the orbit can be taken to be R...
- A paramagnetic sample shows a net magnetization of 6 A/m when it is placed in an external magnetic field of 0.4 T at a...Not in JEE Advanced syllabus
- A particle of charge q and mass m is subjected to an electric field E=E_0(1-ax^2) in the x-direction, where a and E_0 are...
- Consider two uniform discs of the same thickness and different radii R_1=R and R_2= R made of the same material. If the ratio of...
- Two identical cylindrical vessels are kept on the ground and each contain the same liquid of density d. The area of the base of...
- A person pushes a box on a rough horizontal plateform surface. He applies a force of 200 N over a distance of 15 m. Thereafter,...