The wavelength of a wave is 0.00015 m and its frequency is 7 000 Hz. What is the velocity of the wave?
The wavelength of a wave is 0.00015 m and its frequency is 7 000 Hz. What is the velocity of the wave?
The refractive index of green light in water is 1.42. What is its speed when it travels through water?
(Velocity of light in a vacuum is 300 000 km/s).