Physics (Essay) Paper 2 WASSCE (SC), 2016

Question 7

 

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The diagram above illustrates a cathode ray tube

 

Identify the components X, Y and Z



Observation

Majority of the candidates did not attempts this question and less than 50% of the candidates who attempted it scored full mark. The performance was low. Interestingly, this was a repeated question, showing that prospective candidates did not revised with past question papers.

 

 

The expected answer is

X = Filament or heater
Y = Anode
Z = Plates or deflectors