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2018 WAEC Physics Theory  (a) Define strain. (b) A rubber band is stretched to twice its original length. Calculate...

Physics
WAEC 2018

 (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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Explanation

(a) Strain is the ratio of the extension to original length of an object.

(b) Strain = \(\frac{e}{l_o} = \frac{2l_o - l_o}{l_o}\) = 1

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