Characteristics of Sound Waves - Jamb Physics Past Questions and Answers

Question 21:

• JAMB 1992

A note is the octave of another note if it has

A. A frequency twice that of the first note
B. Frequency half that of the first note
C. The same fundamental frequency as the first one
D. A frequency frequency eight times that of the first note

Question 22:

• JAMB 1995

The pitch of an acoustic device can be increased by

A. Increasing the frequency
B. Increasing the amplitude
C. Decreasing the loudness
D. Decreasing the intensity

Question 23:

• JAMB 2003

A turning fork of frequency 340Hz is vibrated just above a cylindrical tube of height 1.2m. If water is slowly poured into the tube, at what maximum height will resonance occur.
[speed of sound in air = 340ms^-1]

A. 0.95m
B. 0.60m
C. 0.50m
D. 0.45m

Question 24:

• JAMB 2003

If the distance from a point source of sound is doubled, by what factor does the intensity decrease?

A. 4.00
B. 2.00
C. 0.50
D. 0.25

Question 25:

• JAMB 2004

The pitch of a sound note depends on

A. Timbre
B. Frequency
C. Harmonics
D. Quality