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Question 17N.3.HL.TZ0.16a

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Date November 2017 Marks available [Maximum mark: 2] Reference code 17N.3.HL.TZ0.16a
Level HL Paper 3 Time zone TZ0
Command term Show that Question number a Adapted from N/A
a.
[Maximum mark: 2]
17N.3.HL.TZ0.16a

An X-ray beam of intensity I0 is incident on lead. After travelling a distance x through the lead the intensity of the beam is reduced to I.

The graph shows the variation of ln ( I I 0 ) with x.

 

(a)

Show that the attenuation coefficient of lead is 60 cm–1.

[2]

Markscheme

evidence of finding the gradient

μ = «– gradient =» 59.9 «cm–1»

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