Surface waves travelling in deep water at 15ms-1 are incident at a shallow water boundary….

Surface waves travelling in deep water at 15ms-1 are incident at a shallow water boundary. If the angles of incidence and refraction are 45o and 30o respectively. Calculate the speed of the waves in shallow water
  • A.
    8.1ms-1
  • B.
    10.0ms-1
  • C.
    10.6ms-1
  • D.
    22.5ms-1
Correct Answer: Option C
Explanation

n = (frac{sin 45}{sin 30} = 1.4142)
n = (frac{15m/s}{x})
x = (frac{15}{1.4142}) = 10.6m/s

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