A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2.5 m. During the collision, the per cent loss in the kinetic energy is:

Which of the following series in the hydrogen spectrum lies in the ultraviolet region?

Which of the following is an example of tensor quantity?

What is the primary function of a concave lens in optical instruments?

Which of the following instruments is used to measure atmospheric pressure?

A pair of bullocks exerts a force of 120 N to plough a field. The field being ploughed is 30 m long. How much work is done (in Joule) to plough the field?

Potentiometer is a device used for ________

When pressure is applied to a fluid, the pressure change is transmitted to every part of the fluid without any loss. Which of the following laws explains this phenomenon?

Sound Cannot travel through:

There is an electric bulb of 50 Watts which is used for 6 hours a day. Calculate how much KWH of energy would be consumed by the bulb in one day.

If the weight of a person on the Earth is 60 kg. What will be his weight on the moon?

An instrument that can detect the presence of a current in a circuit is known as ______.

Calculate the resistance if the current is 20 A and the potential difference measured across the conductor is 100 V.

Find the kinetic energy of a 60 kg object traveling at a speed of 8 m/s.

The resistivity of a semiconductor generally decreases with increasing temperature due to:

What is the dimension for Stress?

Which type of mirror is used in a dental mirror to see a magnified view of teeth?

If a force of 150 N is applied on an area having 4 m². What will be the pressure being applied on the area?

What kind of energy is associated with falling coconuts, speeding cars, rolling stones and flying aircraft?

Why does a concave lens always produce a diminished image regardless of the position of the object?

The capacity to do work is called:

The temperature of 300 K will be how much in Fahrenheit?

For which situation does a convex lens always form a virtual image?

What is the SI unit of resistivity?

A garage hoist lifts a truck up 2 meters above the ground in 15 seconds. Find the power delivered to the truck. [Given: 1000 kg as the mass of the truck]

In 1785, who used the calibrated torsion balance to measure the force between electric charges?

If a  person is carrying an object weighing 25 kg climbs up a stair of 10 m in height in 50 seconds, what will be the power delivered by him to the object?

What is the dimensional formula of G, universal gravitational constant?

The critical angle for total internal reflection is maximum for-

A body is falling from a height of 200 m. After it has fallen 100 m, the body will possess:

Joule is the SI unit of energy. How can this be written as well?

Which of the following becomes difficult without a frictional force?

What is the S.I unit of Specific Heat ?

Which among the following is an ‘action-at-a-distance’ force?

‘mho’ is the unit of ______ of a substance.

Which of the following conditions is necessary for an object to be in uniform motion?

What is the device used for producing electric current?

The lens type commonly used for correcting presbyopia is ______.

Sound waves are classified as which type of waves?

Newton's second law of motion gives us the magnitude of ________.

The acceleration due to gravity at the surface of the earth (mass M and radius R)is proportional to _______.

Compute the resistance if 5 Ω and 2 Ω are connected in parallel.

The weight of an object is 72 N on Earth's surface. How much gravitational force acts on it at a height that is half of Earth's radius?

What is the inverse of capacitance?

____ refers to the movement of an object propelled upwards, influenced solely by the force of gravity.

On which among the following quantities, Gravitational Force does not depend?

What is the S.I. unit of Impulse?

Calculate the Kinetic Energy of an object of mass 50kg moving with a velocity of 10m/s.

If a body is whirled in a circle, then the work done on it _________.

What is the unit of Angular Frequency?