Explain the advantages of a reflecting telescope compared to a refracting telescope
Mirrors can be made much larger than lenses (meters compared to around 1m max). Mirrors do not produce chromatic aberration. Mirror glass does not need to be as high quality as lens glass. Mirrors produce less circular aberration than lenses
Related Physics A Level answers
All answers ▸How does the photoelectric effect actually show that light is made up of particles?
Why does a feather fall at the same rate as a hammer on the Moon?
Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?
Two identical uniform spheres each of radius R are placed in contact. The gravitational force between them is F. They are then separated until the force between them is one ninth of the magnitude. What is the distance between the surfaces of the spheres?