In a ripple tank, 15 full ripplese produced in one second. If the distance between a trough and the next crest is 20 cm, calculate
velocity of the wave.

Explanation

To solve the problem step by step, we will follow these steps:

### Step 1: Determine the Frequency
The question states that 15 full ripples are produced in one second. The frequency (f) of the wave can be calculated using the formula:
\[ f = \frac{\text{Number of waves}}{\text{Time in seconds}} \]
In this case:
...