Waec Physics 1995 Past Questions and Answers

Question 31:

• WAEC 1995

Which of the following wave characteristics can be used to distinguish a transverse wave from a longitudinal wave?

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

Question 32:

• WAEC 1995

A sound note of frequency 250 Hz and wavelength 1.3m is produced at a point near a hill. If the echo of the sound is received 1 second later at the point, how far away is the hill from the point?

A. 131.3m
B. 162.5m
C. 248.7m
D. 251.3m
E. 325.0m.

Question 33:

• WAEC 1995

The period of a wave is 0.02 second. Calculate its wavelength if its speed is 330 ms^-1

A. 6.6m
B. 5.0m
C. 4.0m
D. 3.3m
E. 2.0m

Question 34:

• WAEC 1995

An alternating voltage with a frequency of 50Hz has a period of

A. 0.02s
B. 0.05s
C. 0.20s
D. 0.50 s
E. 50.00s

Question 35:

• WAEC 1995

A listener can detect the instrument from which a note is being sounded because different instruments produce the same note with a different.

A. Frequencies
B. Pitches
C. Loudness
D. Intensities
E. Overtones