Light travels at the speed of______?

[JOSHUAD1]

a.) 186,000 miles per second
b.) 186,000 miles per minute
c.) 186,000 miles per hour
d.) the same speed regardless of wether it travels in air or glass
e.) None of the above

 

[Robert]

e.

Depends on the medium it is traveling through.

 

[RICO]

Light travels at the speed of light. The answers you have are for VELOCITY, not speed.

 

[chris]

A (in a vacuum, mind you)

 

[Sean]

a) 186,000 miles a second

 

[murphy]

a.) and d.)

 

[SleepingTroll]

a.) Which by the way is 300,000,000 meters/s