DP Physics (last assessment 2024)

Test builder »

Question 18M.2.HL.TZ1.b.i

Select a Test
Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.2.HL.TZ1.b.i
Level HL Paper 2 Time zone TZ1
Command term Sketch Question number b.i Adapted from N/A
b.i.
[Maximum mark: 2]
18M.2.HL.TZ1.b.i

The radioactive nuclide beryllium-10 (Be-10) undergoes beta minus (β–) decay to form a stable boron (B) nuclide.

The initial number of nuclei in a pure sample of beryllium-10 is N0. The graph shows how the number of remaining beryllium nuclei in the sample varies with time.

On the graph, sketch how the number of boron nuclei in the sample varies with time.

[2]

Markscheme

correct shape ie increasing from 0 to about 0.80 N0

crosses given line at 0.50 N0

M18/4/PHYSI/SP2/ENG/TZ1/06.b.i/M

[2 marks]

Syllabus sections