Question

waves require a medium for their propagation.

• A. Mechanical
• B. Non-mechanical
• C. Light

Answer 1

The correct option is A Mechanical

Mechanical waves are the waves which require a medium for their propagation. They cannot travel through vacuum. E.g. sound waves through air. On the other hand, non-mechanical waves don't require a medium for their propagation. E.g. light waves, X-rays etc.