Waves - Jamb Physics Past Questions and Answers

Question 41:

• JAMB 1997

The diagram above shows two wave forms P and Q at a particular instant in time. the two waves will interface

A. Destructively to produce a wave of larger amplitude
B. Destructively to produce a wave of smaller amplitude
C. Constructively to produce a wave of larger amplitude
D. Constructively to produce a wave of smaller amplitude

Question 42:

• JAMB 1998

The velocity of a sound wave at 27^oC is 360ms^-1. Its velocity at 127^oC is

A. 120√3 ms^-1
B. 240 ms^-1
C. 240√3 ms^-1
D. 720√3 ms^-1

Question 43:

• JAMB 1998

The physical properties of sound waves can best be described by

A. Reflection and diffraction
B. Polarization and reflection
C. Polarization and diffraction
D. Polarization and refraction

Question 44:

• JAMB 1998

In a closed organ pipe producing a musical note, an antinode will always be produced at

A. The closed end
B. The open end
C. The middle
D. All the parts of the pipe

Question 45:

• JAMB 1998

A steel wire of length 0.50m is stretched between two fixed points and its fundamental frequency is 200Hz. The speed of the wave in the wire is

A. 100ms^-1
B. 120ms^-1
C. 200ms^-1
D. 250ms^-1