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

Question 6:

• JAMB 1989

In a sound wave in air, the adjacent rarefactions and compressions are separated by a distance of 17cm. If the velocity of the sound wave is 340ms^-1. Determine the frequency

A. 10Hz
B. 20Hz
C. 1000Hz
D. 5780Hz

Question 7:

• JAMB 1990

An organic pipe closed at one end is 80cm long. Determine the frequency of the fundamental note assuming that the speed of sound in air is 340ms-1

A. 106Hz
B. 213Hz
C. 318Hz
D. 425Hz

Question 8:

• JAMB 1994

The sound from a source travelled to the bottom of the sea and the echo was heard 4s later. If the speed of sound in sea water is 1500ms^-1 the depth of the sea is

A. 6000m
B. 3000m
C. 1500m
D. 375m

Question 9:

• JAMB 1994

A pipe of length 45cm is closed at the end. Calculate the fundamental frequency of the sound wave generated in the pipe if the velocity of sound in air is 360ms^-1 [Neglect end correction]

A. 5.5Hz
B. 148.5Hz
C. 200.0Hz
D. 550.0Hz

Question 10:

• JAMB 2005

The velocity of sound in air will be doubled if it's absolute temperature is

A. Quadrupled
B. Constant
C. Halved
D. Doulbed