by Rajan Gupta | Aug 9, 2020 | Articles
Climbing stairs and lifting objects is work in both the scientific and everyday sense—it is work done against the gravitational force. When there is work, there is a transformation of energy. The work done against the gravitational force goes into an important form of...
by Rajan Gupta | Aug 8, 2020 | Articles
The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours when passed through a transparent medium. It was discovered by Isaac Newton in 1666. Newton discovered that light is made up of seven different colours....
by Rajan Gupta | Aug 8, 2020 | Articles
The refraction of light may be defined as the phenomenon of change in direction of light, when it passes from one medium to another. The cause for refraction of light when it passes through one medium to another is the difference of velocity of light in different...
by Rajan Gupta | Aug 8, 2020 | Articles
Did you ever notice that drops of water are always spherical in shape? Have you ever seen insects floating over surface of water? These phenomenon takes place due to an interesting property of liquids called surface tension. Surface tension may be defined as the...
by Rajan Gupta | Aug 8, 2020 | Articles
The minimum temperature at which a substance starts to burn is called its ignition temperature. Different fuels have different ignition temperatures. Some fuels have low ignition temperature and some have high ignition temperature. The fuels that have low ignition...
Recent Comments