Question

which color (frequency) of light travels the fastest in a vacuum? answer: a red b yellow c green d violet e all have the same speed.

Explanation:

In a vacuum, all electromagnetic waves, regardless of color (frequency), travel at the speed of light \(c\approx 3\times 10^{8}\ m/s\). This is a fundamental property of light in a vacuum.

Answer:

E. All have the same speed.