9702 · topic questions
Hubble's law and the Big Bang theory
8 past-paper questions on Hubble's law and the Big Bang theory
Explain how redshift leads to the idea that the Universe is expanding.
Explain how the positions of the lines in the emission spectrum seen by an observer on the Earth differ from the positions shown…
On Fig. 8.1, draw the three lines in possible positions in the spectrum seen by the observer.
A value for the Hubble constant is 2.3 × 10⁻¹⁸s⁻¹. Determine the distance of the galaxy from the Earth.
Determine: the distance d of the galaxy from the Earth
On Fig. 10.1, sketch the variation of v with d.
Determine the wavelength, in nm, of this radiation as detected by the observer on the Earth.
Determine: the speed v of the galaxy relative to the Earth.
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