Physics questions
20027 published questions with worked solutions.
- Two coils have mutual inductance 0.002 H. The current changes in the first coil according to the relation i = i₀sinωt, where i₀ =...
- A stone of mass 900 g is tied to a string and moved in a vertical circle of radius 1 m making 10 rpm. The tension in the string,...
- The temperature of a gas having 2.0 × 10²⁵ molecules per cubic meter at 1.38 atm (Given, k = 1.38 × 10⁻²³ JK⁻¹) is
- A particle is moving in a straight line. The variation of position 'x' as a function of time 't' is given as x = (t³ – 6t² + 20t...
- An electric field is given by (6 i + 5 j + 3 k) N/C. The electric flux through a surface area 30 i m² lying in YZ-plane (in SI...
- A planet takes 200 days to complete one revolution around the Sun. If the distance of the planet from Sun is reduced to one...
- In an a.c. circuit voltage and current are given by : V = 100 sin (100t) V and I = 100 sin(100t + π/3) mA respectively. The...
- A physical quantity Q is found to depend on quantities a, b, c by the relation Q = a^4b^3 c^2 . The percentage error in a, b and...
- A small liquid drop of radius R is divided into 27 identical liquid drops. If the surface tension is T, then the work done in the...
- A wire of length L and radius r is clamped at one end. If its other end is pulled by a force F, its length increases by ℓ. If the...
- Two particles X and Y having equal charges are being accelerated through the same potential difference. Thereafter they enter...
- In Young's double slit experiment, light from two identical sources are superimposing on a screen. The path difference between...
- A charge of 4.0 μC is moving with a velocity of 4.0 × 10⁶ ms⁻¹ along the positive y-axis under a magnetic field B of strength...
- Hydrogen atom is bombarded with electrons accelerated through a potential difference of V, which causes excitation of hydrogen...
- A horizontal straight wire 5 m long extending from east to west falling freely at right angle to horizontal component of earth's...
- Two metallic wires P and Q have same volume and are made up of same material. If their area of cross sections are in the ratio 4...
- A simple harmonic oscillator has an amplitude A and time period 6π second. Assuming the oscillation starts from its mean...
- A particle is moving in a circle of radius 50 cm in such a way that at any instant the normal and tangential components of it's...
- A body of mass 5 kg moving with a uniform speed 3√2 ms⁻¹ in X-Y plane along the line y = x + 4. The angular momentum of the...
- In a single slit diffraction pattern, a light of wavelength 6000 Å is used. The distance between the first and third minima in...