A cosmological model of the expansion of the universe yields a Hubble constant of H0=2.3×10−18 s−1H_0 = 2.3 \times 10^{-18}\text{ s}^{-1}H0=2.3×10−18 s−1.
What is the value of this Hubble constant in units of km s−1 Mpc−1\text{km s}^{-1}\text{ Mpc}^{-1}km s−1 Mpc−1?
Given: 1 parsec=3.09×1016 m1\text{ parsec} = 3.09 \times 10^{16}\text{ m}1 parsec=3.09×1016 m
7.1×10−57.1 \times 10^{-5}7.1×10−5
7.1×10−27.1 \times 10^{-2}7.1×10−2
717171
7.1×1047.1 \times 10^{4}7.1×104
66 exam-style questions on OCR A A Level Physics Astrophysics and cosmology, covering Stars, Electromagnetic radiation from stars, and Cosmology. Each one has a worked solution and a mark scheme showing where the marks go.