How long does it take a beam of light to travel 1 foot in a vacuum?

Speed of light = 3x10⁸ m/s.

1 m = 3.28 ft

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Related questions

Using the indexes of refraction given in Table 22.1 and takingthe speed of light in free space as 3.0X10⁸ m/s, findthe speed of light in (a) air, (b) diamond, (c) crown glass, and(d) water.

air:

a) 3X10⁸ m/s b)3.21X10⁸ m/s c)4.91X10⁸ m/s d)2.88X10⁸ m/s

diamond:

a) 3X10⁸ m/s b)2.93X10⁸ m/s c)1.24X10⁸ m/s d)1.11X10⁸ m/s

crown glass:

a) 3X10⁸ m/s b)2.35X10⁸ m/s c)2.03X10⁸ m/s d)1.97X10⁸ m/s

water:

a) 3X10⁸ m/s b)2.26X10⁸ m/s c)1.83X10⁸ m/s d)1.75X10⁸ m/s

*Please show steps of how to solve the problem, A+ rating willbe given, thanks!

How long (in ns) does it take light to travel 1.0 m invacuum?
What distance does light travel in water during the time that ittravels 1.0 m in vacuum?
What distance does light travel in glass during the time that ittravels 1.0 m in vacuum?
What distance does light travel in diamond during the time that ittravels 1.0 m in vacuum?

how long (in ns) does it take light to travel 0.900 m in vacuum?