Electromagnetic spectrum

The continuous spectrum as well as pattern comprising bright lines or bands seen when electromagnetic radiation generated by a substance is transmitted into a spectrometer is known as the emission spectrum. The spectrum reflects the emitting substance’s characteristics as well as the sort of excitation to which it is subjected. The light emitted when a […]

Two main types of spectra exist, emission spectra and absorption spectra. Emission spectra involve electrons moving from lower to higher energy levels, which occurs when they take in energy. These excited electrons must then release, or emit, this energy to return to their ground states. The frequencies of this emitted light comprise their emission spectrum. 

Infrared radiation (IR) is electromagnetic radiation (EMR) with wavelengths longer than visible light. As a result, it is invisible to the naked eye, though IR from specifically pulsed lasers with wavelengths of up to 1050 nanometers (nm) can be seen by humans under particular conditions. Infrared light has a wavelength of 700 nanometers to 1

Earlier it was thought that nature is quantized. Here, quantized means discrete and non-continuous.  However, this was contrary to the equations provided by Maxwell to predict the result of the blackbody radiator. Planck tried to understand it but failed to correlate the behaviour of electromagnetic waves with the discrete nature of the blackbody radiations. It

What is a Black Body? A black body is an ideal surface or body that completely absorbs and re-emits all the radiation that falls on it without reflection. Absorption of radiation is independent of the direction of incidence, frequency and wavelength of radiation. Properties of a perfect black body To be able to call a