Question

Which of the following is called as non-mechanical waves?

(a) Magnetic waves

(b) Electromagnetic waves

(c) Electrical waves

(d) Matter waves

I have been asked this question during an interview.

This is a very interesting question from Compton Effect topic in division Quantum Physics of Engineering Physics I

Answer 1

Right answer is (b) Electromagnetic waves

To explain I would say: The waves which travel in the form of oscillating electric and magnetic waves are called electromagnetic waves. Such waves do not require any material for their propagation and are called non-mechanical waves.