Speed of Wave on Water Surface | Measurement

Question 1. The distance traveled by the wave between two successive drops is
A. 58.6 cm
B. 18.6 cm
C. 9.3 cm
D. 27.9 cm

Question 2. The average speed of waves on the water surface is
A. 22 cm/sec
B. 1480 m/sec
C. 340 m/sec
D. 21.6 m/sec