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Waec Physics 2018 Past Questions and Answers

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Waec 2018 Physics Past Questions

Question 51:


In which of the following fields is radioisotopes not used?

A. Medicine
B. Oil industry
C. Agriculture
D. Weather forecast

View Answer & Explanation

Question 52:


A nuclide is represented by \(_{32}^{70}B\). Determine its neutron-proton ratio

A. 0.5
B. 0.8
C. 1.2
D. 1.5

View Answer & Explanation

Question 53:


(a) Define strain.
(b) A rubber band is stretched to twice its original length. Calculate the strain on the rubber band.


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Question 54:


State three materials used for making optical fibres.


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Question 55:


Name three classes of magnetic materials.


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