Waves - Jamb Physics Past Questions and Answers

Question 36:

• JAMB 1995

The wavelength of signals from a radio transmitter is 1500mm and the frequency is 200kHz. What is the wavelength for a transmitter operating at 100kHz?

A. 7500m
B. 300m
C. 75m
D. 15m

Question 37:

• JAMB 1995

The difference between sound waves and light waves is that sound waves

A. Are transverse while light waves are longitudinal
B. Require a medium to travel while light waves does not
C. Can be diffracted but light waves cannot
D. Cannot be reflected but light waves can

Question 38:

• JAMB 1997

Ripples on water and light waves are similar because both

A. Have the same frequency
B. Can be refracted and diffracted
C. Are longitudinal waves
D. Have the same velocity

Question 39:

• JAMB 1997

The colours seen in the thin films of oil on the road and in soap bubbles are due to

A. Reflection
B. Interference
C. Diffraction
D. Polarization

Question 40:

• JAMB 1997

If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by

A. Decrease the length of the wire
B. Increasing the length of the wire
C. Increasing the mass per unit length of the wire
D. Changing the temperature of the wire