A sonar signal of frequency 1.00 106 Hz has a wavelength of 1.40 mm in water.
(a) What is the speed of the signal in water?
(b) What is its period in water?
(c) What is its period in air?
(a) What is the speed of the signal in water?
(b) What is its period in water?
(c) What is its period in air?