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AQA A LEVEL PHYSICS 7408/3BA PAPER SECTION B ASTROPHYSICS VERSION 1.O FINAL QUESTION PAPERS & MERGED MARKING SCHEME | JUNE 2023
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Draw a labelled diagram to define the parsec (pc). [1 mark] Table 1 shows data for two stars: Rigel and the Sun. Table 1 Star Surface temperature / K Absolute magnitude Mass / kg Rigel 12 000 −7.84 3.6 × 1031 Sun 5700 4.83 2.0 × 1030 0 1 . 2 State the spectral class of Rigel. [1 mark]3 *03* Turn over ► IB/M/Jun23/7408/3BA Do not write outside the 0 1 . 3 The apparent magnitude of Rigel is 0.11 box Calculate, in pc, the distance from Rigel to the Earth. [2 marks
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AQA A LEVEL PHYSICS
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