CAPE Physics Unit 1 · 2012 · Paper 1 · Question Q25
After investigating the refraction of water waves in a ripple tank, a student draws the following conclusions. I. When refraction occurs, the wavelength of the waves changes. II. Refraction is caused by a change in the speed of the wave. III. When the waves are incident along the normal, a change of frequency occurs. Which of the above conclusions is/are correct?
- (A)I only
- (B)I and II only
- (C)II and III only
- (D)I, II and III
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