Physics questions
20027 published questions with worked solutions.
- If the Kinetic energy of a moving body becomes four times its initial Kinetic energy, then the percentage change in its momentum...
- A boy reaches the airport and finds that the escalator is not working. He walks up the stationary escalator in time t_1. If he...
- A satellite is launched into a circular orbit of radius R around earth, while a second satellite is launched into a circular...
- With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength 5890 Å is observed at...
- The length of a metal wire is _1, when the tension in it is T_1 and is _2 when the tension in it is T_2. The natural length of...
- In an electromagnetic wave the electric field vector and magnetic field vector are given as E =E_0 i and B =B_0 k respectively....
- For a series LCR circuit with R = 100 , L = 0.5 mH and C = 0.1 pF connected across 220 V–50 Hz AC supply, the phase angle between...
- Which of the following graphs represent the behavior of an ideal gas ? Symbols have their usual meaning.
- A particle is making simple harmonic motion along the X-axis. If at a distances x_1 and x_2 from the mean position the velocities...
- An electron having de-Broglie wavelength is incident on a target in a X-ray tube. Cut-off wavelength of emitted X-ray is :
- A body rolls down an inclined plane without slipping. The kinetic energy of rotation is 50% of its translational kinetic energy....
- If time (t), velocity (v), and angular momentum ( ) are taken as the fundamental units. Then the dimension of mass (m) in terms...
- The correct relation between the degrees of freedom f and the ratio of specific heat is :
- Consider a binary star system of star A and star B with masses m_A and m_B revolving in a circular orbit of radii r_A and r_B,...
- At an angle of 30° to the magnetic meridian, the apparent dip is 45°. Find the true dip :Not in JEE Advanced syllabus
- A body at rest is moved along a horizontal straight line by a machine delivering a constant power. The distance moved by the body...
- Two vectors P and Q have equal magnitudes. If the magnitude of P + Q is n times the magnitude of P - Q , then angle between P and...
- The magnetic susceptibility of a material of a rod is 499. Permeability in vacuum is 4 10^ -7 H/m. Absolute permeability of the...Not in JEE Advanced syllabus
- A body of mass 'm' is launched up on a rough inclined plane making an angle of 30° with the horizontal. The coefficient of...
- Two bodies, a ring and a solid cylinder of same material are rolling down without slipping an inclined plane. The radii of the...