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 ▸

A) Draw field lines around a positive point particle. B) How does a faraday cage prevent the people within it recieving a electric shock ?


A car of mass m travelling with a velocity v comes to rest over a distance d in time t. The constant frictional force acting on the car while it is braking is found using:


A man weighing 600N steps on a scale that contains a spring. The spring is compressed 1cm under their weight. Find the force constant of the spring and total work done on its compression.


why is gravitational potential negative?