A ground-based optical telescope records images of Mars on two clear nights.
On the second night, the air above the telescope is moving less. All other conditions are the same.
Which prediction is correct?
Fine surface markings appear sharper in the second image.
Mars appears to twinkle more in the second image.
The sky around Mars appears darker in the second image.
Mars appears brighter in the second image.
75 exam-style questions on Edexcel GCSE Physics 7.3 Stars, covering 7.3.1 Evolution of stars similar to the Sun, 7.3.2 Evolution of massive stars, and 7.3.3 Observing the Universe. Each one has a worked solution and a mark scheme showing where the marks go.