What is the name given to that part of electromagnetic spectrum which is used for taking photographs of earth under foggy conditions from the great height?
Infrared rays.
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Name the part of electromagnetic spectrum which is suitable for (i) radar systems used in aircraft navigation. (ii) treatment of cancer tumours.
(i) Microwave (ii) Gamma rays
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Special devices like the klystron value or the magnetron valve, are used for production of electromagnetic waves. Name these waves and also write one of their applications.
Klystron valve or magnetron valve are used for production of microwave. Application: Microwaves are used in microwave Ovens.