## Value of Speed of Light** (Shoutout to Dr. Lavelle for calling me out in lecture today) [ENDORSED]

$c=\lambda v$

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Jennifer Ma 1G
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Joined: Fri Apr 06, 2018 11:03 am

### Value of Speed of Light** (Shoutout to Dr. Lavelle for calling me out in lecture today)

In lecture on Monday, Dr. Lavelle briefly introduced the equation that frequency x wavelength = speed of light. What is the value of speed of light? I googled it, and it spit back 299,792,458 m/s. Do we use this insanely large value, or do we use scientific notation of this value? Is the latter, what is the scientific notation we use for the speed of light?
Last edited by Jennifer Ma 1G on Wed Apr 11, 2018 2:12 pm, edited 2 times in total.

nicolesalcedo
Posts: 30
Joined: Fri Apr 06, 2018 11:05 am

### Re: Value of Speed of Life

I think it's preferred to use the scientific notation for the speed of light when making calculations. It's 3.00*10^8m/s

Jacob Samuels 1E
Posts: 30
Joined: Fri Apr 06, 2018 11:05 am

### Re: Value of Speed of Life

You could use 2.99 but it's just easier to use 3.00 because it's simpler

Sam Metzger 1C
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Joined: Wed Apr 04, 2018 3:00 am

### Re: Value of Speed of Light** (Shoutout to Dr. Lavelle for calling me out in lecture today)

Exactly. It's also important to note that this value is the speed of light in a vacuum. We'll probably be able to use this value for all our calculations but it would be a different number in another medium.

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

### Re: Value of Speed of Light** (Shoutout to Dr. Lavelle for calling me out in lecture today)  [ENDORSED]

Ya, the value used in the solution manual was 2.998*10^8, but in class we were using the rounded 3.00*10^8.

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