Radio Signal Travel Time from James Webb Telescope · PhysicsBowl 2022 #12
Physics
Problem
The James Webb Space Telescope was launched on December 25, 2021 and arrived at its destination, LaGrange Point 2, on January 24, 2022. This point is approximately 1,500,000 km from the Earth and it is where the telescope will orbit the sun.
How long will it take the radio signal sent by the James Webb Space Telescope to reach the Earth?
a. 0.005 s b. 0.05 s c. 5 s d. 50 s e. 5000 s