A green laser beam with a wavelength of 515 nm is transmitting a signal to a satellite.If it takes 1.0 ms for the signal to reach the satellite,how far away is the satellite?

Question

Quizplus · Accepted Answer

The distance to the satellite can be calculated using the speed of light (c = 3.00 x 10^8 m/s) and the time it takes for the signal to reach the satellite. Distance = speed x time. Given time is 1.0 ms = 1.0 x 10^-3 s. Therefore, distance = 3.00 x 10^8 m/s x 1.0 x 10^-3 s = 3.00 x 10^5 m = 300 km.

A Green Laser Beam with a Wavelength of 515 Nm