Name the electromagnetic radiations used for viewing the objects or to take the photograph through haze and fog.

Name the electromagnetic radiations used for eye surgery.

Name the electromagnetic radiations used for water purification?

Name the electromagnetic radiations used for studying the crystal structure of solids.

Name the part of the electromagnetic spectrum which is used for taking photographs of the earth under foggy conditions from great heights.

Name the part of electromagnetic spectrum, which is used in greenhouse to keep the plants warm.

Which constituent radiation of the electromagnetic spectrum is used: for taking photographs of the sky during night and foggy conditions? Give one reason for your answer

….is used in motor vehicles to take rear view.

What should be the order of magnitude of the minimum fequency of electromagnetic waves that could be used to detect the presence of a bird 0.1m long? From what sources of electromagnetic radiation would you be able to generate radiation of these wavelengths?

Welders wear special goggles or face masks with glass windows to protect eyes from electromagnetic radiations. Name the radiations and write the range of their frequencies.