1.

Unit of sound intensity ________(a) joules per sq. cm(b) watt per sq. cm(c) joules per cm(d) watt per cmThis question was addressed to me in an online quiz.My question is from Mechanism of Hearing in division Audiometry of Biomedical Instrumentation

Answer»

Right answer is (b) WATT per sq. cm

For explanation: Sound INTENSITY MAY be defined as the amount of energy flow per unit time through a unit area PERPENDICULAR to the direction of energy flow. It is expressed as watts per square centimetre. However, the common receivers of sound are microphones, which do not measure sound intensity directly.



Discussion

No Comment Found

Related InterviewSolutions