Waves - Jamb Physics Past Questions and Answers

Question 106:

• JAMB 2020

In which of the following diagrams is the length of the tube equal to one wavelength?

A. A
B. B
C. C
D. D

Question 107:

• JAMB 2021

The equation of a wave traveling along the positive x-direction is given by; y = 0.25 x 10\(^{-3}\) sin (500t - 0.025x). Determine the angular velocity of the wave motion.

A. 0.25 x 10\(^{-3}\)rads\(^{-1}\)
B. 0.25 x 10\(^{-1}\)rads\(^{-1}\)
C. 5.00 x 10\(^{2}\)rads\(^{-1}\)
D. 2.50 x 10\(^{3}\)rads\(^{-1}\)

Question 108:

• JAMB 2021

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 109:

• JAMB 2021

The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 180Hz?

A. 4
B. 3
C. 2
D. 1