Question

Which of the following electromagnetic waves has highest velocity?

• A. Violet
• B. Green
• C. Red
• D. All have same velocity

Answer 1

The Correct Option is C

All electromagnetic waves, regardless of their frequency or wavelength, travel at the same speed in a vacuum, which is the speed of light \( c = 3 \times 10^8 \, \text{m/s} \). This applies to all types of electromagnetic waves, including visible light (violet, green, red), radio waves, microwaves, and X-rays. Therefore, the correct answer is that all electromagnetic waves have the same velocity.

The correct option is (C): Red