Question

Which of the following is/are true? Electromagnetic waves are created by accelerating charges. Electromagnetic waves are transverse waves. Electromagnetic waves consist of time-varying electric and magnetic fields that are mutually perpendicular. Electromagnetic waves move at the speed of light in a vacuum. All of the above are true.

Answer 1

All of the above are true.

Step-by-step explanation:

(a). true

whenever charge particle move back and froth from its mean position then it will produce oscillating electric and magnetic fields, . so an em wave can be obtain by accelerating charge

(b). true

the electric field and the magnetic field have vibrations in the perpendicular direction along the motion of the wave so electromagnetic wave is a transverse wave. therefore, the EM wave is a Transverse wave

(c) true .

The Electromagnetic wave consists of the two mutually perpendicular electric and magnetic fields and also both fields are perpendicular to the direction of propagation of the wave.

(d) true .

An electromagnetic wave carry energy through vacuum with a speed of
`3 * 10^8 m/s`

so , all of the above are true.