Question

1) The height of the tide, h metres, at a harbour at any time during a 24-hour period is given
by the equation h(t) = 10 + 4 sin(15t)◦, where t is measured in hours.

a) Sketch the graph of h against t for 0 ≤ t ≤ 24.

I want to know for the Period it will be 2π/15, how will you convert it into t for 0 ≤ t ≤ 24.