User login

4 + 7 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete waves in a distance of 50 cm. The velocity of wave is:

53 cms-1

60 cms-1

1500 cms-1

750 cms-1