Speed of sound in solids, liquids and air - Jamb Physics Past Questions and Answers

Question 11:

• JAMB 2010

THe velocity of sound in air at 16^oC is 340ms^-1. What will it be when the pressure is doubled and its temperature raised to 127^oC?

A. 400 ms^-1
B. 4,000 ms^-1
C. 8,000 ms^-1
D. 160,000 ms^-1

Question 12:

• JAMB 2020

A ship travelling towards a cliff receives the echo of its whistle after 3.5 seconds. A short while later, it receives the echo after 2.5 seconds. If the speed of sound in air under the prevalling condition is 250ms -1, how much closer is the ship to the cliff?

A. 10m
B. 350m
C. 175m
D. 125m

Question 13:

• JAMB 2021

A boy standing some distance from the foot of a tall cliff claps his hands and hears an echo 0.5s later. If the speed of sound is 340ms\(^{-1}\), how far is he from the cliff?

A. 680m
B. 170m
C. 34m
D. 85m