em spectrum

Question 2

How are radio waves made

Answer 2

By oscillating electric and magnetic fields.
The frequency of the waves will be equal to frequency of the alternating current.
The object in which charges oscillate to create the radio waves is called a transmitter
Not complete

Question 3

Em waves in order of wavelengths

Answer 3

Radio waves, micro waves, infra red, visible light, ultra violet, x-rays, gamma rays