The electromagnetic spectrum (1 =lowest frequency, 7=highest frequency)

The electromagnetic spectrum (1 =lowest frequency, 7=highest frequency)

1. 1. Radio Waves

   • Can be used to transmit TV and Radio programmes.

2. 2. X rays

   • 1. Medicine
   • 2. Airport security

3. 3. Ultra violet

   • 1. Sun beds
   • 2. UV Marking

4. 4. Visible light

5. 5. Infra red

   • TV Remotes

6. 6. Microwaves.

   • Microwave ovens

7. 7. Gamma Rays

   • Medical equipment sterilisation