What is the correct answer?


The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

A. v1/v2

B. v2/v1

C. (v1 + v2)/v1

D. (v1 + v2)/v2

Correct Answer :

B. v2/v1

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