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Nuclear and particle physics

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Question 24

The table below shows the quark compositions of four particles, $P$ , $Q$ , $R$ , and $S$ .

Particle	Quark composition
$P$	$udˉu\bar{d}$
$Q$	$dsˉd\bar{s}$
$R$	$u ss$
$S$	$dd s$

Which particle has a net charge of 0 and a strangeness of +1?

Particle $Q$

Particle $R$

Particle $S$

Particle $P$

Markscheme

Nuclear and particle physics Questions

A Level
Physics
Nuclear and particle physics

90 exam-style questions on OCR A A Level Physics Nuclear and particle physics, covering The nuclear atom, Fundamental particles, Radioactivity, and Nuclear fission and fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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