Many large optical telescopes are built on high mountains in remote desert areas.
Explain two advantages of building an optical telescope on a high mountain rather than at sea level.
Explain why these telescopes are built a long way from towns and cities.
A telescope that detects X-rays would not work, even on the highest mountain.
Give the reason.
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.