DP Physics (last assessment 2024)

Test builder »

Question 20N.3.HL.TZ0.a

Select a Test
Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.3.HL.TZ0.a
Level HL Paper 3 Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
20N.3.HL.TZ0.a

The cosmic microwave background (CMB) radiation is observed to have anisotropies.

State the nature of the anisotropies observed in the CMB radiation.

[1]

Markscheme

the temperature/«peak» wavelength/intensity «of the CMBR» varies «slightly» / is not constant in different directions ✓

Examiners report

This was not the best answered question in the Option. Candidates oscillated between correct identification of characteristics of the CMB radiation and more generic explanations about the Big Bang.

Syllabus sections