Two mechanical waves travel in different media. Wave P has frequency 500Hz and wavelength 0.60m. Wave Q has a time period of 1.0ms and wavelength 0.40m. Which statement about their speeds is correct?
a) Wave P is faster with speed 300m s−1
b) Wave Q is faster with speed 400m s−1
c) Both waves travel with equal speed 300m s−1
d) Wave P is faster with speed 833m s−1