The necessity for a material medium - Jamb Physics Past Questions and Answers

Question 6:

• JAMB 2012

If a sound wave goes from a cold air region to a hot air region, its wavelength will

A. Increase
B. Decrease
C. Decrease then increase
D. Remain constant

Question 7:

• JAMB 2019

Which of the following media allow the transmission of sound waves through them?
I. air
II. liquid
III. solids


A. I & II only
B. I & III only
C. II & III only
D. I, II & III

Question 8:

• JAMB 2020

When a sound wave passes from air into water its

A. Speed and frequency increases but its wavelength remains the same
B. Speed and wavelength increases but its frequency remains the same
C. Speed decreases
D. Speed increases but its frequency and wavelength decreases