Give one use each of (a) microwaves , (b) ultraviolet radiations , (c) infrared radiations, and (d) gamma rays.

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Solution

(a)Microwaves are used for satellite communication.
(b)Ultraviolet radiations are used for detecting the purity of gems, eggs, ghee etc.
(c)Infrared radiations are used in remote control of television and other gadgets.
(d)Gamma rays are used in medical science to kill cancer cells.

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