`text(Radio and Microwaves)` are used in radio and TV communication.

`text(Infrared rays)` are used to

(i) Treat muscular straw.
(ii) For taking photographs in fog or smoke.
(iii) In green house to keep plants warm.
(iv) In weather forecasting through infrared photography.

`text(Ultraviolet rays)` are used

(i) In the study of molecular structure.
(ii) In sterilizing the surgical instruments.
(iii) In detection of forged documents, finger prints.

`text(X-ray)` are used to

(i) In detecting cracks, faults, flaws and holes in metal products.
(ii) In the study of crystal structure.
(iii) For the detection of pearls in oysters.

`γ`-`text(rays)` are used for the study of nuclear structure.