Is sound able to travel through a vacuum?
Is sound able to travel through a vacuum?
A spring is producing waves with a frequency of 4 Hz and a wavelength 0.5 m. What is its velocity? What will be its wavelength if the frequency is doubled? What will be its wavelength if the frequency is reduced to half?
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).