Physics Test - ...

A light year is a measure of :  

A device which is used to limit the current in an electrical circuit is called a -

Two rods, one of copper and other of steel, experience the same up thrust when placed in water. Thus, both have –

Minimum numbers of unequal vectors which can give zero resultant are -

Water is not suitable as a calorimetric substance because it –

When a body falls from an aeroplane, there is increase in its –

Which among the following types of coal produces most heat per unit?  

Which among the following waves is used for communication by artificial satellites?  

Energy is continuously created in the sun due to –

When the barometer reading dips suddenly, it is an indication of –

Good conductor of electricity is –

The fourth state of matter is known as

Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______.​

Which one of the following instruments is used to study dispersion of light?  

A falling drop of rain water ac-quires the spherical shape due to –

This scientist gave the law- ‘Properties of elements are a periodic function of their atomic number.’This property of the fundamental importance of atomic number was discovered by

The mass and energy equivalent to 1 a.m.u. respectively are -

A spherical ball made of steel when dropped in mercury container will –

The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as –

Gamma rays have greatest similarity with –