Question 24
Question 24 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
3. Waves
3.1. General properties of waves

Define the terms: (a) frequency as the number of wavelengths that pass a point per unit time (b) wavelength as the distance between two consecutive, identical points such as two consecutive crests (c) amplitude as the maximum distance from the mean position

3. Waves
3.4. Sound

Describe the longitudinal nature of sound waves and describe compressions and rarefactions