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Question 18M.2.SL.TZ1.c.iii

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.2.SL.TZ1.c.iii
Level SL Paper 2 Time zone TZ1
Command term Calculate Question number c.iii Adapted from N/A
c.iii.
[Maximum mark: 2]
18M.2.SL.TZ1.c.iii

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

An ice sample is moved to a laboratory for analysis. The temperature of the sample is –20 °C.

Calculate the peak wavelength in the intensity of the radiation emitted by the ice sample.

[2]

Markscheme

λ = 2.90 × 10 3 253

= 1.1 × 10–5 «m»

 

Allow ECF from MP1 (incorrect temperature).

[2 marks]