← Back to Training
MCQBeginnerTelescopes, Instruments & Observing
BAAO — 2016 Astronomy & Astrophysics A2 Challenge
Question 3
A typical cheap handheld telescope has a diameter of 10 cm, whilst ones for keen amateurs can have diameters of 40 cm. How much greater light gathering power does the larger telescope have?
Sign in to save your progress.
Source
Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics A2 Challenge 2016. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.