Electrostatics

Fluorescence: When an atomic or molecular system is excited into higher energy state by absorption of energy, it returns back to lower energy state in…

There are some substances in which the molecules are excited by the absorption of incident ultraviolet light, and they do not return immediately to their…

Theory of Light: Any theory regarding propagation of light must explain the properties of light. Since, light is a form of energy, it is transferred from…

The following are some of the uses of electromagnetic waves. Radio waves: These waves are used in radio and television communication systems. AM band is…

When white light falls on a prism, placed in a spectrometer, the waves of different wavelengths are deviated to different directions by the prism. The…

When the light emitted directly from a source is examined with a spectrometer, the emission spectrum is obtained. Every source has its own characteristic emission…

When the light emitted from a source is made to pass through an absorbing material and then examined with a spectrometer, the obtained spectrum is…

Hertz experiment of electromagnetic waves The existence of electromagnetic waves was confirmed experimentally by Hertz in 1888. This experiment is based on the fact that…

According to Maxwell, an accelerated charge is a source of electromagnetic radiation. In an electromagnetic wave, electric and magnetic field vectors are at right angles…

Electromagnetic waves consist of oscillating electrical and magnetic fields, acting perpendicular to each other. Dissimilar ranges of electromagnetic waves can be classified according to their…