Electromagnetic spectrum

Need to know

What you need to know

• 7.4 Electromagnetic spectrum.
• Electromagnetic waves are transverse waves.
• It consists of electric field and magnetic field components.
• It can propagate without the need of a medium to carry them unlike mechanical waves.
• The speed that electromagnetic waves travel at is 3.00 x 10⁸ m s^{-1}.
• If this number seems familiar it’s because that’s the speed of light. Light is a wave or more specifically an electromagnetic wave.

Explanation

Electromagnetic spectrum

1. 7.4 Electromagnetic spectrum.
2. Electromagnetic waves are transverse waves.
3. It consists of electric field and magnetic field components.
4. It can propagate without the need of a medium to carry them unlike mechanical waves.