From the image. If the channel pairs are 10 centimeters apart, it was found that the point P is the 3 non passing fit if there are surface waves, speed of 10 meters per second. The water surface wave frequency?
If the channel and away from a 10 cm line that point P has risen a third wave passed fit, if the surface speed of 10 meters per second. How much water is there wave frequency
From the image. If dual channel apart for 10 cm, it was found that the node at the point P 3 through fit if wave ผิวน้'s speed is 10 per second. Surface wave frequency is much.