Light and other electromagnetic waves

Light and other electromagnetic waves

1. Electromagnetic waves are waves which are like light. they are electrical and magnetic disturbances that travel through space at a speed of 300 000 000 m/s (but slower in denser substances, which is what causes refraction) they are all transverse waves which travel in straight lines, carry energy and can travel through a vaccum. Electromagnetic waves can reflect, refract and diffract

2. electromagnetic spectrum:

3. Gamma rays and X-rays are measured in units called millisieverts ( mSv )