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Laser Distance Meter
Please I need help on a physics question?
The distance to the Moon from Earth is about 4 x 10^8 meters. About how long would it take a laser light beam from Earth to travel to the Moon and back?
a) 6 minutes
b) 3 minutes
c) 1 minute
d) 30 seconds
e) 3 seconds
You must have a different moon to mine, at 4 x 10^8 distance?
Mine is much closer, abt. 400,000km.
Taking light to be 300,000kph., (400,000/300,000kph) = 1.333 secs. Double that, is 2.666 secs.
The closest answer you have is 3 secs. (e).
Leica Disto D2 Compact Laser Distance Meter