List of top Physics Questions

The range of vision of a normal human eye is from :
S. I. unit of power of lens is :
The angle of incidence of any light passing through the centre of curvature of a spherical mirror is :
Refractive index of water w.r.t. air is 1.33. What is the refractive index of air w.r.t. water ?
Which of the following materials cannot be used to make a lens ?
The focal length of a convex lens is 18 cm and the size of the image is a quarter of the object. The object is situated at a distance of:
A particle is moving on a circular path of radius r. Its displacement after one revolution :
In velocity time graph, area under v-t graph represents :
SI unit of weight is :
The mass of a goods lorry is 3500 Kg and the mass of goods loaded on it is 1500 Kg. If the lorry is moving with a velocity 10m/s. What will be its momentum ?
Rocket works on the principle of conservation of :
Force on an object can not change its :
Which of the following distance-time graphs represents an object in uniform motion?
SI unit of gravitational constant (G) is :
The velocity of an object becomes double then its kinetic energy will be :
An object of mass 2 Kg is lifted up to height 2 m. The work done will be :
In SONAR, we use :
Mass of a man is 60 Kg, his mass on the moon will be :
Maximum work is done, when the angle between force and displacement is :
If time period is \(0.02\) second, then frequency will be :
The minimum distance between source and reflecting surface for echo is :
The B-H curves for two ferromagnetic materials are shown in figure.
The B-H curves for two ferromagnetic materials
These Hysteresis loops are for
A sample of 0.1 g of water at 100°C and normal pressure (1.013 × 105 Nm-2 ) requires 54 cal of heat energy to convert to steam at 100°C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is
A gill throws a stone horizontally from the roof of a house 12 in above the ground with a speed of If 15 m/s. Neglecting air resistance, the time it takes tor the stone to reach the ground is
A rocket is about to launch upwards from its platform. The engine ejects gas at a rate of 2100 kg/s and the molecules are expelled at 50 m/s. If the above condition is just sufficient to make it rise upwards, the mass of the rocket is (Assume $g = 10\, ms^2$)