CAIE A-Level Chemistry AS 1.1.5 Behaviour of Beams of Protons Neutrons Questions

Practise predicting and explaining proton, neutron and electron beam paths in electric fields from particle charge, mass and charge-to-mass ratio.

Exam points

Predict and explain how beams of protons, neutrons and electrons deflect in electric fields using charge and mass.

[Maximum number: 1]

Beams of charged particles are deflected by an electrical field. The angle of deflection of a particle is proportional to its charge/mass ratio.

In an experiment protons are deflected by an angle of $+15^{\circ}$ . In another experiment under identical conditions ${ }^{2} \mathrm{H}^{-}$ ions are deflected by an angle of $\mathrm{Y}^{\circ}$ .

What is the value of Y?

-30.0

-7.5

+7.5

+30.0

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CAIE A-Level Chemistry AS 1.1.5 Behaviour of Beams of Protons Neutrons Questions question 1