the theme is Characteristics of Electromagnetic and mechanical waves and light and color is given below
Explanation:
- Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. The mechanical waves need a medium like water, air, or anything for it to travel.
- The characteristic of both sound waves and electromagnetic waves are: (2) They transfer energy. Explanation: A wave may be a longitudinal wave whereas, magnetic force waves are transverse waves.
- Sound waves are longitudinal waves that is, are transmitted in the same direction of oscillation of the particles in the medium. Electromagnetic waves are transverse ie, the electric and magnetic fields, which are perpendicular to each other, oscillate perpendicularly to the direction of wave propagation.
