1. Science
  2. Physics
  3. the distance between the earth and the moon has been...

Question: the distance between the earth and the moon has been...

Question details

The distance between the earth and the moon has been very accurately measured by reflecting laser light off special reflectors placed by the Apollo manned moon landings (a) A pulse of laser light is emitted from the earth, reflects off the moon and returns. If it takes 2.56s to complete this journey what is the distance from the earth to the moon? (b) The laser is then made to scan across the surface of the moon creating a spot that apparently moves faster than the speed of light. What is the minimum angular rotation speed of the laser? (Assume small displacements) (c) Why can this spot not transmit information between two points on the moon faster than light?

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution