Question

how many transverse waves make up an electromagnetic wave? hint: study the image carefully. 2 1

Explanation:

An electromagnetic wave is composed of two transverse waves. One is the electric - field ($E$) wave and the other is the magnetic - field ($B$) wave. Both the electric and magnetic fields oscillate perpendicular to the direction of wave propagation (which is the characteristic of a transverse wave).

Answer:

2