Test : Physics - 5 - Defence MCQ

An image formed by a plane mirror, that cannot be obtained on a screen is called Virtual image.

If an object moves in a circular path with uniform speed, its motion is called uniform circular motion.

The reflection formed by the plane mirror is Lateral inversion.

In general, a uniformly accelerated motion is the one in which the acceleration of the particle throughout the motion is uniform. The motion of a freely falling body is an example of Uniformly accelerated motion.
 

The Melting point of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure.

For an object, the state of rest is considered to be the state of zero speed.

The term 'Higgs Boson' is associated with God particle.

Candela is not related to sound. It is unit of light intensity.

Electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space-time, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Diamond is a bad conductor of electricity but good conductor of heat. Electricity is conducted in a crystal by electrons that are relatively free. But in diamond, each carbon atom is covalently bonded with four other carbon atoms and there are no free electrons.

Weightlessness experienced while orbiting the earth in space ships is due to Zero gravity.

John Logie Baird was a Scottish engineer, innovator, one of the inventors of the mechanical television, demonstrating the first working television system on 26 January 1926.

An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body. It was the first electrical measuring instrument. The first electroscope, a pivoted needle called the versorium, was invented by British physician William Gilbert around 1600.

Wavelength of red colour is largest and violet colour has the shortest wavelength.

On September 10, 1846, Elias Howe was granted a US patent for his invention of the sewing machine.

The impulse-momentum theorem states that the change in momentum of an object equals the impulse applied to it.

ISRO built India's first satellite known as Aryabhata.

The cooling by a desert cooler is based on evaporative cooling. These coolers are also known as swamp coolers. 

Most of the air conditioner uses compressed gas, which can cool the room or other places. 

Barograph was invented in 1844 by the Frenchman Lucien Vidi (1805–1866).