Question

When a sound wave of frequency 300 Hz passes through a medium, the maximum displacement of a particle of the medium is 0.1 cm. The maximum velocity of the particle is equal to 

(a) 60 πcms^-1 

(b) 30 πcms^-1 

(c) 30 cms^-1 

(d) 60 cms^-1 

Answer 1

Correct option: (a) 60 πcms^-1 

Explanation: 

aω = 0.1 x 2π x 300 

= 60 πcms^-1