Waves - Jamb Physics Past Questions and Answers

Question 31:

• JAMB 1993

Which of the following waves can propagate through a vacuum?

A. High velocity sound waves
B. Ultrasonic waves
C. Acoustic waves
D. Infra-red waves

Question 32:

• JAMB 1994

The equation of transverse wave traveling along a string is given by Y = 0.3 sin(0.5x - 50t) where Y and X are in cm and t is in seconds.Find the maximum displacement of the particles from the equilibrium position

A. 50.0cm
B. 2.5 cm
C. 0.5cm
D. 0.3cm

Question 33:

• JAMB 1994

The fundamental frequency of vibration of a sonometer wire may be halved by

A. Doubling the length of the wire
B. Doubling the mass of the wire
C. Reducing the tension by half
D. Reducing the absolute temperature by half

Question 34:

• JAMB 1994

The note produced by a stretched string has a fundamental frequency of 400Hz. If the length of the string is doubled while the tension in the string is increased by a factor of 4, the frequency is

A. 200Hz
B. 400Hz
C. 800Hz
D. 1600Hz

Question 35:

• JAMB 1995

Which of the following is the exclusive property of a transverse wave?

A. Diffraction
B. Refraction
C. Compression
D. Polarization