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Question 19N.3.SL.TZ0.11b(ii)

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.SL.TZ0.11b(ii)
Level SL Paper 3 Time zone TZ0
Command term Outline Question number b(ii) Adapted from N/A
b(ii).
[Maximum mark: 1]
19N.3.SL.TZ0.11b(ii)
(b(ii))

Outline why the estimate made in (b)(i) is unlikely to be the actual age of the universe.

[1]

Markscheme

because estimate assumes the «present» constant rate of expansion ✔
it is unlikely that the expansion rate of the universe was ever constant ✔
there is uncertainty in the value of H0 ✔

NOTE: OWTTE

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