Question

Select any and all of the following which are true:

The speed of light is __________.

Group of answer choices

constant for all wavelengths when measured in a vacuum.

commonly denoted as "c".

approximately 670,600,000 mph

faster in water than in a vacuum.

3.0 x 10^8 m/s.

Answer 1

The speed of light is:

- constant for all wavelengths when measured in a vacuum.
- commonly denoted as "c".
- 3.0 x 10^8 m/s.