The velocity of em waves is ______?

برقی مقناطیسی لہروں کی رفتار ______ ہے؟

1 × 10⁶ m/s

1 × 10⁸ m/s

3 × 10⁸ m/s

None of these

The velocity of electromagnetic waves (EM waves) in a vacuum is approximately 3 × 10⁸ meters per second.

This speed is constant for all EM waves, including light, radio waves, and X-rays, in a vacuum.