Which one of the following is not a property of electromagnetic waves ?

Options

A. Electromagnetic waves do not show interference and diffraction .
B. Oscillating electric field and magnetic field are perpendicular to each other.
C. Electromagnetic waves are transverse waves
D. Electromagnetic waves do not require a medium to propagate .

Answer

A

Explanation

Interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for examplesound waves, surface waves, and electromagnetic waves (e.g., light waves, etc,). Similarly, Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light , X-rays and radio waves.