EM spectrum

Uses of radio

Communication (radio and TV)

Uses of microwave

Heating food, communication (wifi, mobile phones, satellites)

Uses of infrared

Remote controls, fibre optic communication, thermal imaging (medicine and industry), night vision, heating or cooking, motion sensors (security alarms)

Uses of Visible light

Seeing and taking photos/videos

Uses of UV

Security marking (fluorescence), fluorescent bulbs, getting a sun tan

Uses of X-rays

X-ray images (medicine, airport security, industry

Uses of gamma rays

sterilizing medical instruments, treating cancer

Wavelength of radio

> 0.1m

Wavelength of microwaves

0.1 - 1e-3 m

Wavelength of Infrared

1e-3 - 7e-7 m

Wavelength of UV

4e-7 - 1e-8 m

Wavelength of Visible light

4e-7 - 7e-7 m

Wavelength of X-rays

1e-8 - 4e-13 m

Wavelength of Gamma rays

1e-10 - 1e-16

Frequency of Radiowaves

< 3e9

Frequency of microwaves

3e9 - 3e11

Frequency of Infrared

3e11 - 4.3e14

Frequency of Visible

4.3e14 - 7.5e14

Frequency of UV

7.5e14 - 3e16

Frequency of X-rays

3e16 - 7.5e20

Frequency of Gamma rays

3e18 - 3e24