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:

If the initial velocity of a car is 5 m/s, and the final velocity is 10 m/s in a 5-second journey, then the acceleration is _________.

Whose law states that at a junction in an electric circuit, the sum of the currents flowing into the junction is equal to the sum of the currents flowing out of the junction?

What does the kinetic energy of an object increase with?

The unit of power used in industry is:

One horse power is:

Which device can be used to measure the density of a liquid?

1 horse power is equal to approximately ______ watts.

Which of the following equation of motion is correct?
I. v = (u/2) + at
II. s = 2ut + at²

One calorie of heat energy is equivalent to approximately ______ joules of mechanical energy.

Which of the following is the correct formula for the moment of inertia?

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

A man lifts aa luggage of 25 kg from the ground and puts it on the head, 2.5m above the ground. If the value of g = 10 ms^-2, then the value of work done by him on the luggage is:

Which physicist is known to establish the relationship between mechanical work and heat transfer?

What enables an electric current to flow in a circuit?

An object having a mass 'm' moving with a velocity 'v' possesses a kinetic energy 'k'. If its velocity is doubled, its kinetic energy will become:

1 kilowatt is equivalent to:

Ice floats on water because its density is:

Which of the following laws states that electric current 'I' flowing through a metallic wire is directly proportional to the potential difference 'V', across its ends provided its temperature remains constant?

Which of the following becomes difficult without a frictional force?

An object of 5.0 kg is raised through a height off 2.0 m. The work done in the process is :

(Take g = 9.8m/s²)

In 1834, who proposed a law thar states thar the current induced by a change in flow opposes the effect producing the change?

Select the option in which the words share the same relationship as that shared by the given pair of words.

Resistance : Ohm

What is the potential energy of a dipole (p) in an electric field (E) in unstable equilibrium?

Determine the potential energy acquired by a 1 kg mass when it ascends to a height of 2 meters (where g = 10 m/s²).

One calorie of heat energy is equivalent to approximately ______ joules of mechanical energy.

What is the flux on the surface of a sphere of surface area 1 m² due to a dipole of dipole momentum 10 debye?

The angular displacement of an object in rotational motion is described using___.

If the velocity of a body becomes two times its initial velocity, its kinetic energy becomes n times its initial kinetic energy. What is the value of n?

A spacecraft in deep space far from any gravitational influence is moving in a straight line at a constant speed. What will happen if no external force acts on it?

Which of the following is the correct match of the column-A with column-B?

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.

1 kWh = ?

One nanometer is:

Identify the incorrect match among the following options?

The torque experienced by a dipole kept in a uniform electric field E is maximum when the angle between dipole moment p and electric field E is _____________

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

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

1 kilowatt is equivalent to:

Whose law states that at a junction in an electric circuit, the sum of the currents flowing into the junction is equal to the sum of the currents flowing out of the junction?

The unit of power used in industry is:

In 1834, who proposed a law thar states thar the current induced by a change in flow opposes the effect producing the change?

The capacity to do work is called:

Which of the following scenarios demonstrates that work is being done on an object?

Acceleration is measured in what SI unit?

The moment of inertia of a thin rod with mass 'M' and length 'L' about an axis perpendicular to the rod and passing through its center is ________.

Which of the following is the correct formula for the moment of inertia?

A spacecraft in deep space far from any gravitational influence is moving in a straight line at a constant speed. What will happen if no external force acts on it?

The SI unit for magnetic flux is referred to as .................

In an alternating current (AC) circuit, the phase difference between the voltage and the current is 90 degrees. Which of the following components must be present?