Question

b) Give 2 uses of each of the following radiations
1. infrared
2. microwaves
3. gamma radiation
4. ultraviolet​

Answer 1

Answer:

1.) •To observe changing blood flow in the skin.

•Detect overheating of electrical apparatus.

2) •spacecraft communication

•medical diathermy cancer treatment

3)•used in medicine (radiotherapy)

•industry (sterilization and disinfection) and the nuclear industry.

4)-•Ultraviolet rays can be used to kill microbes. Hospitals use UV lamps to sterilise surgical equipment and the air in operating theatres.

• Food and drug companies also use UV lamps to sterilise their products.