## Value of speed of light [ENDORSED]

$c=\lambda v$

Or Fisher 1I
Posts: 35
Joined: Fri Feb 02, 2018 3:00 am

### Value of speed of light

Hello
I was trying to answer question 1.7 and when I looked in the solution manual I saw that it put the speed of light constant to be 2.998*10^8, however in class we were using the rounded 3.00*10^8 so I was wondering which one we should use in calculations? Thanks.

Josian1A
Posts: 17
Joined: Tue Nov 14, 2017 3:00 am

### Re: Value of speed of light

I believe we're supposed to use 3x10^8 m/s. On exams/tests we'll be given a sheet with all the important constants included, so don't stress too much about it.

Emma Leshan 1B
Posts: 30
Joined: Fri Apr 06, 2018 11:03 am

### Re: Value of speed of light  [ENDORSED]

Use whichever constant is given on the test just to be safe.

Jose Hernandez 1D
Posts: 16
Joined: Tue Nov 14, 2017 3:02 am

### Re: Value of speed of light

Just use given values.

Mjay 1F
Posts: 6
Joined: Fri Apr 06, 2018 11:02 am

### Re: Value of speed of light

I know the questions would not be correlated with one another, but wouldn't using different values make your results inconsistent?