Abstract

*Dobariya Vithal Dhirubhai and Dr. Nizant Oza

ABSTRACT

Microwave is a type of electromagnetic energy which lies at lower level of electromagnetic spectrum and has frequency in range of 300 – 300,000 megahertz which is equal to wavelength of range 1cm-1 mm. The microwave region of the electromagnetic spectrum lies between infrared and radio frequencies. The difference between microwave energy and other forms of radiation, such as X- and ?-rays, is that microwave energy is non-ionizing and therefore does not alter the molecular structure of the compounds being heated – it provides only thermal activation.