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[1] A wave is propagating from deep water to shallow water perpendicularly.

a) Derive the equation that can be used to evaluate the value of wave height in shallow water.

b) If the wave height at deep water is H.-2.4 m and the angle of approach is 30°, what is the value

of wave height at water depth of 4.5 m, given that wave period is 10s.

Fig: 1