Waves - Jamb Physics Past Questions and Answers

Question 16:

• JAMB 1987

A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is

A. 60.0ms^-1
B. 6.0ms^-1
C. 1.5ms^-1
D. 0.6ms^-1

Question 17:

• JAMB 1987

A boat at anchor is rocked by waves whose crest are 100m apart and whose velocity is 25ms^-1. At what interval does the wave crest reach the boat?

A. 2500.00s
B. 75.00s
C. 4.00s
D. 0.25s

Question 18:

• JAMB 1988

Which of the following properties is/are common to all waves? i. Diffraction ii. Refraction iii. Interference

A. I only
B. Ii only
C. Ii and iii
D. I, ii, and iii

Question 19:

• JAMB 1988

The fig above shows two waveforms X and Y. If the frequency of X is 30Hz what is the frequency of Y

A. 12Hz
B. 19Hz
C. 60Hz
D. 75Hz

Question 20:

• JAMB 1989

A vibrator of frequency 60Hz is used in generating transverse stationary waves in a long thin wire, If the average distance between successive nodes on the wire is 45cm, find the speed of the transverse waves in the wire.

A. 27ms^-1
B. 54ms^-1
C. 90ms^-1
D. 108ms^-1