Physics questions
20027 published questions with worked solutions.
- A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The...
- A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on the ground at a distance R...
- A thin ring of 10 cm radius carries a uniformly distributed charge. The ring rotates at a constant angular speed of 40π rad s^ -1...
- In a double slit experiment, when a thin film of thickness t having refractive index μ is introduced in front of one of the...
- The value of numerical aperture of the objective lens of a microscope is 1.25. If light of wavelength 5000 Å is used, the minimum...
- The trajectory of a projectile near the surface of the earth is given as y = 2x - 9x^2. If it were launched at an angle _0 with...
- A person of mass M is sitting on a swing of length L and swinging with an angular amplitude _0. If the person stands up when the...
- A point dipole p = -p_0 x is kept at the origin. The potential and electric field due to this dipole on the y-axis at a distance...
- An electromagnetic wave is represented by the electric field E = E_0 n [ t + (6y - 8z)]. Taking unit vectors in x, y and z...
- Two moles of helium gas is mixed with three moles of hydrogen molecules (taken to be rigid). What is the molar specific heat of...
- A magnetic compass needle oscillates 30 times per minute at a place where the dip is 45°, and 40 times per minute where the dip...Not in JEE Advanced syllabus
- Which of the following combinations has the dimension of electrical resistance ( _0 is the permittivity of vacuum and _0 is the...
- A man (mass = 50 kg) and his son (mass = 20 kg) are standing on a frictionless surface facing each other. The man pushes his son...
- A submarine (A) travelling at 18 km/hr is being chased along the line of its velocity by another submarine (B) travelling at 27...
- An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature 300 K. The mean time between two successive...
- A galvanometer, whose resistance is 50 ohm, has 25 divisions in it. When a current of 4 10^ -4 A passes through it, its needle...
- Two satellites, A and B, have masses m and 2m respectively. A is in a circular orbit of radius R, and B is in a circular orbit of...
- Let ℓ, r, c and v represent inductance, resistance, capacitance and voltage, respectively. The dimension of rcv in SI units will...
- A simple harmonic motion is represented by: y = 5( 3 t + 3 3 t) cm. The amplitude and time period of the motion are:
- A plano-convex lens (focal length f_2, refractive index _2, radius of curvature R) fits exactly into a plano-concave lens (focal...