Physics · Elasticity
A solid cube of side a is subjected to equal compressive stress p on all faces. If its Bulk modulus is K, the fractional change in its side length (Δa/a) is:
- 1-3p / K
- 2-p / K
- 3-p / 3K✓
- 4p / K
Correct answer
-p / 3K
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