Which of the following types of electromagnetic radiation travels at the greatest speed in vacuum?

Question

Which of the following types of electromagnetic radiation travels at the greatest speed in vacuum? (A) Radio waves (B) Visible light (C) X-rays (D) All of these travel at the same speed

Tardigrade Admin · Accepted Answer

All electromagnetic waves travel with the same speed c (= 3 ×108 m s-1) in vacuum.

Q. Which of the following types of electromagnetic radiation travels at the greatest speed in vacuum?

Radio waves

Visible light

X-rays

All of these travel at the same speed

All electromagnetic waves travel with the same speed $c (= 3 \times 1 0^{8} m s^{- 1}$ ) in vacuum.

Q. Which of the following types of electromagnetic radiation travels at the greatest speed in vacuum?

Radio waves

Visible light

X-rays

All of these travel at the same speed

All electromagnetic waves travel with the same speed c(=3×108ms−1) in vacuum.

All electromagnetic waves travel with the same speed $c (= 3 \times 1 0^{8} m s^{- 1}$ ) in vacuum.