Arrange the following electro-magnetic radiations in ascending order of their frequencies :
(i) Microwave
(ii) Radiowave
(iii) X-rays
(iv) Gamma rays.
Write two uses of any one of these.

Explanation

To arrange the given electromagnetic radiations in ascending order of their frequencies, we need to understand the general order of the electromagnetic spectrum. The electromagnetic spectrum is typically arranged from the lowest frequency to the highest frequency as follows:

1. Radio waves
2. Microwaves
3. Infrared radiation
4. Visible light
5. Ultraviolet radiation
6. X-rays
...