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Question 19M.1.HL.TZ2.2

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.HL.TZ2.2
Level HL Paper 1 Time zone TZ2
Command term Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
19M.1.HL.TZ2.2

A proton has momentum 10-20 N s and the uncertainty in the position of the proton is 10-10 m. What is the minimum fractional uncertainty in the momentum of this proton?

A. 5 × 10-25

B. 5 × 10-15

C. 5 × 10-5

D. 2 × 104

[1]

Markscheme

C

Examiners report

Over 100 candidates left this blank. It is testing fractional uncertainty and also involves the Heisenberg uncertainty principle.

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