List of top Physics Questions

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

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

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

Find the correct diagram of electric field lines of forces for negative charges -

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

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

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

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

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 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

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

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.

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.

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