- #1

Maximtopsecret

- 19

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## Homework Statement

Light (plane wave) reflects from the mirror moving along X-axis with speed V. The wave is orthogonal to the mirror (φ=0°).

Write the law for frequency change.

## Homework Equations

I know Lorenz transformation for frequency.

## The Attempt at a Solution

All I do not know is how to apply the mentioned equation. I suppose if we denote ω'

_{1}is the frequency of a falling wave in the mirror's system, ω'

_{2}is the frequency of a reflected wave in that system, ω'

_{1}= ω'

_{2}. Also I suppose ω'

_{2}will be equal to the frequency of reflected wave in the stationary system. Am I wrong?