What stays the same when a wave reflects from a mirror?

[adulapuram]

Homework Statement

1. When a wave is reflected from a mirror, there is no change in its
a) Amplitude b) Frequency c) Velocity d) All

Homework Equations

The Attempt at a Solution

I think frequency changes,not sure

 

[cupid.callin]

i guess all

 

[timon]

tip 1: If the frequency changes, the color of the light changes.
tip 2: the speed of light, c, is constant under all circumstances.
tip 3: $$\lambda = \frac{c}{f}$$

 

[cupid.callin]

tip 1: If the frequency changes, the color of the light changes.
tip 2: the speed of light, c, is constant under all circumstances.
tip 3: $$\lambda = \frac{c}{f}$$

c is not constant in all circumstances.
it remains same in same medium
and it is c only in vacuum not in air

 

[ehild]

tip 2: the speed of light, c, is constant under all circumstances.
tip 3: $$\lambda = \frac{c}{f}$$

The speed of light depends of the medium. The ratio c/v is called the refractive index. The wavelength is v/f.

ehild