Physics 7408/3BA June 2018

The AQA Paper 3 Physics exam (June 2018), Section B (Astrophysics), explores key astrophysical concepts. It covers topics such as the calculation of wavelengths for telescopes, the focal length of eyepiece lenses for resolving astronomical objects, and the study of star properties to determine if two stars form a binary system. The paper also delves into the spectral classification of stars, quasar redshift data to estimate the age of the universe, and the inverse-square law. Additionally, the exam includes questions on cosmological microwave background radiation and the relative abundance of hydrogen and helium, both of which support the Big Bang theory.