Electromagnetic Radiation Applications

Question

Electromagnetic Radiation Applications
Electromagnetic radiation plays an important role in everyday lives. The application of the radiation depends on its energy. The table shows the wavelengths and characteristics of each radiation in the electromagnetic spectrum.

Electromagnetic Radiation Wavelength (m) Characteristics
Radio waves > 1 × 10-1 Carry signals to television sets and cellular phones
Microwaves 1 × 10-3 to 1 × 10-1 Commonly used to heat food and develop radar images
Infrared 7 × 10-7 to 1 × 10-3 Often used in remote controls, to provide heat, and to detect heat
Visible Light 4 × 10-7 to 7 × 10-7 The part of the spectrum that is seen by the human eye
Ultraviolet 1 × 10-8 to 4 × 10-7 Energy from the Sun that causes sunburn
X-rays 1 × 10-11 to 1 × 10-8 Can easily pass through skin but not through bone
Gamma rays < 1 × 10-11 Generated by radioactive atoms and can kill living cells
Select the type of radiation that is most likely used for each application.

Radio Waves
Ultraviolet
X-Rays
Used for communication across mobile devices.
Used to determine if an injury is the result of a broken bone.
Used in hospitals to kill microbes by sterilizing surgical equipment and the air in operating rooms.

Answer 1

Here are the types of radiation that correspond to each application provided:

1. Used for communication across mobile devices: Radio Waves
2. Used to determine if an injury is the result of a broken bone: X-Rays
3. Used in hospitals to kill microbes by sterilizing surgical equipment and the air in operating rooms: Ultraviolet

These applications are consistent with the characteristics and uses of each type of electromagnetic radiation listed in the table.