There are two optical telescopes operating at the exact same frequency. The firs
ID: 1300157 • Letter: T
Question
There are two optical telescopes operating at the exact same frequency. The first telescope is a 13 m telescope that is planned to be located at the L2 Lagrangian point 1.5 million kilometers past the orbit of the Earth. The second telescope is a 2 m telescope that is planned to be placed on the far side of the moon (average distance to the moon is 380,000 km from the Earth). The 13 m telescope has agreater light gathering power by a factor of _____ times? Report your answer to 2 decimal places.
Explanation / Answer
The 13 m telescope has agreater light gathering power by a factor of 42.25 times.
power = d1^2/d2^2 = 13^2/2^2= 42.25