Waves - Jamb Physics Past Questions and Answers

Question 81:

• JAMB 2010

During a thunderstorm, the sound is heard over a long time. this phenomenon is referred to as

A. Diffraction of sound
B. Refraction of sound
C. Superposition
D. Reveraberation

Question 82:

• JAMB 2011

Which of the following types of waves needs a medium for propagation?

A. Sound waves
B. Light waves
C. Radio waves
D. X - rays

Question 83:

• JAMB 2011

A length of wire has a frequency of 255Hz when stretched by a force of b225N. If the fore increased to 324N, what is the new frequency of vibration

A. 306 Hz
B. 512 Hz
C. 488 Hz
D. 356 Hz

Question 84:

• JAMB 2012

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

A. 0.25 x 10^-3rad s^-1
B. 0.25 x 10^-1rad s^-1
C. 5.00 x 10²rad s^-1
D. 2.50 x 10³rad s^-1

Question 85:

• JAMB 2012

I. Coherence
II. Same frequency
III. Same wavelength
IV. Same Intensity
Which of the conditions above are necessary to produce interference fringes?

A. I and III
B. I, II and IV
C. I, II and III
D. II and III