State true or false and justify your answer.Light waves requires medium for their propagation.

Answer

False.

Light waves do not require a medium for their propagation. Unlike sound waves, which are mechanical waves that need a medium (like air, water, or solids) to travel through, light waves are electromagnetic waves. They can propagate through a vacuum, which is a space devoid of matter. This characteristic of light is fundamental to our understanding of the nature of electromagnetic radiation.

To elaborate, electromagnetic waves consist of oscillating electric and magnetic fields that are perpendicular to each other and to the direction of wave propagation. Since these fields can sustain themselves, light can travel through the vacuum of space, allowing it to reach us from celestial bodies like the sun and stars. This ability of light to travel through a vacuum is one of the reasons we can observe astronomical phenomena from Earth even though outer space is essentially empty.