List of top Physics Questions

Find the average velocity when a particle complete the circle of radius 1m in 10 sec

A circuit contains 2 resistance R₁ and R₂ in series. Find the ratio of input voltage to voltage of R₂

Two wire of same material having radius in ratio 2 : 1 and lengths in ratio 1 : 2. If same force is applied on them, then ratio of their change in length will be

If three objects are thrown with velocities \(\sqrt{\frac{2gH}{2}},\sqrt{2gh},\sqrt{\frac{gH}{3}}\), then the ratio of maximum heights

A projectile of mass 1 kg is projected with a speed of 10 m/s at an angle of 60° from the horizontal when projectile is at its highest point, its magnitude of angular momentum (about point of projection)

Find the distance between two consecutive nodes if for a string
T = 0.25 N, μ = 1 mg/m, f = 250Hz

One rod of length 2 m and thermal conductivity 50 unit is attached to another rod of length 1 m and thermal conductivity 100 unit. Temperature of free ends are 70°C and 50°C respectively. Then temperature of junction point will be

One object of mass 20 kg is moving with the speed of 10 m/s is west direct another object of mass 10 kg is moving with 15 m/s in north direction. Both collide and stick together choose the correct alternative

If v of light is 5 × 10¹⁶ Hz. If speed of light is air is 3 × 10⁸ m/s, find the ratio of wavelengths of light in medium of refractive index 2 to air

B-122 has half life of 2 minutes experiment has to be done using Ba-122 and it take 10 minutes the setup the experiments if initially 80 gm of Ba-122 was taken how much Ba was left when experiment was started

If ratio of terminal velocity of two falling drops is 3 : 4, then what is the ratio of their surface areas ?

If velocity of light in the air is C then what will be the velocity of light in medium of refractive index 1.4 ?

Find the value of θ = ?

Find the position of final image from first lens focal length of each lens is 10 cm

In β⁺ emission what happens to upquarks

Following circuit will act as,

In the given circuit if power rating of heater is 1000 watt at 100 volt. Find the resistance R in figure so that heater produce power of 62.5 W.

In the given circuit find the heat produced between A & B :
(given C = 1μF)

Find the maximum radius of circle so that block can complete the circular motion.

Find the current in 8Ω resistance in given circuit,

The plots of intensity versus wavelength of three black bodies at temperatures \(T_1, T_2,\) and \(T_3\) respectively are as shown.

Their temperature are such that

A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emittedwill be

Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The intervening space is filled with oil of refractive index is 1.7. The focal length of the combination is

A horizontal pipe line carries water in a streamline flow. At a point along the pipe where the cross sectional area is \(10 cm^2\),the water velocity is  \( 1ms^{-1}\) and the pressure is 2000 Pa. What is the pressure at another point where the cross-sectional area is \(5 cm^2\)?

The time period of oscillation of a magnet in a vibrationmagnetometer is 1.5 sec. The time period of oscillation of another magnet similar in size, shape and mass but having 1/4 magnetic moment than that of the 1 st magnet oscillating at the same place will be