Light from the Sun travels 150 millions km to Earth in 8 minutes with a speed of about 300 millions m/s.
P1 Wave speed
The speed of a wave can be calculated using its wavelength and its frequency.
Wave speed
Wave speed = frequency x wavelength
(m/s) (Hz) (m)
You need to know how to calculate wave speed from the above equation.
Higher tier only: you need to be able to use this equation to calculate frequency or wavelength. .
The speed of a wave can be calculated using its wavelength and its
frequency.