PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
When an alloy is cooled, its Young’s modulus increases by 44% while its density decreases by 16%. Estimate the percentage change in the speed of sound through the alloy.
(a) Approximately 20% increase
(b) Approximately 31% increase
(c) Approximately 10% increase
(d) Approximately 14% increase