List of top Physics Questions

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

If a object starts from rest and cover angles of 60 rad in 10 sec in circular motion magnitude angular acceleration 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

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

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)

If escape velocity one earth surface is 11.1 km/hr then find the escape velocity on the moon surface if mass of moon is \(\frac{1}{81}\) times of the mass of the earth and radius is \(\frac{1}{4}\) times radius of earth

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

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

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 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

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

Find the value of θ = ?

In β⁺ emission what happens to upquarks

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

Find the height of the liquid in the capillary tube if surface tension of liquid is S, radius of capillary tube is r and acceleration due to gravity is g :

Find the current in 8Ω resistance in given circuit,

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.

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.

Following circuit will act as,

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 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

A ring of mass m and radius r is melted and then moulded into a sphere. The moment of inertia of the spheres will be