GENERAL KNOWLEDGE

Detailed explanation-1: -All the given waves are found in electromagnetic spectrum and have the properties of an electromagnetic wave, therefore all (microwave, radio waves, infrared radiation) are electromagnetic waves.

Detailed explanation-2: -X-rays and -rays both are electromagnetic waves.

Detailed explanation-3: -Infrared waves, or infrared light, are part of the electromagnetic spectrum. People encounter Infrared waves every day; the human eye cannot see it, but humans can detect it as heat.

Detailed explanation-4: -The wavelength of infrared region is 8×10−5cm to 3×10−3cm. So maximum wavelength of infrared region =8×10−5cm≈10−4cm.

Detailed explanation-5: -Radio waves, television waves, and microwaves are all types of electromagnetic waves. They only differ from each other in wavelength. Wavelength is the distance between one wave crest to the next.