Physics

expand

collide less often

move more rapidly

contract

v = f²\(\lambda\)

f = \(\frac{v}{\lambda}\)

f = \(\frac{v}{\lambda^2}\)

\(\lambda = \frac{f}{v^2}\)

165.0 ms^-1

330.0ms^-1

41.5ms^-1

85.0ms^-1

are longitudinal

have same frequency

have the same wavelength

travel at the same speed in a vacuum

at the focus

at the centre of curvature

beyond the centre of curvature

between the centre of curvature and the focus