DP Physics (last assessment 2024)

Question 18M.3.HL.TZ1.a.i

Date	May 2018	Marks available	[Maximum mark: 1]	Reference code	18M.3.HL.TZ1.a.i
Level	HL	Paper	3	Time zone	TZ1
Command term	Write down	Question number	a.i	Adapted from	N/A

a.i.

[Maximum mark: 1]

18M.3.HL.TZ1.a.i

A positive pion decays into a positive muon and a neutrino.

${\pi ^ + } \to {\mu ^ + } + {v_\mu }$

The momentum of the muon is measured to be 29.8 MeV c^–1 in a laboratory reference frame in which the pion is at rest. The rest mass of the muon is 105.7 MeV c^–2 and the mass of the neutrino can be assumed to be zero.

For the laboratory reference frame

write down the momentum of the neutrino.

[1]

Markscheme

«–»29.8 «MeVc^–1»

[1 mark]

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Core

Core » Topic 7: Atomic, nuclear and particle physics » 7.1 – Discrete energy and radioactivity

Core » Topic 7: Atomic, nuclear and particle physics

Question 18M.3.HL.TZ1.a.i

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