Question

What can be determined from the frequency and wavelength of a wave?

Answer 1

energy of the wave and also its region in electromagnetic spectrum :)

Answer 2

as chmvijay said ,we can find energy as by planck's formula E=hf and also wave number which determine in which region wave is present.wave no.+1/wavelenth.regions are visible,ultraviolet,infrared

Answer 3

and also its velocity.

Answer 4

Velocity; \[c =f \times \lambda \]
c=velocity
f= frequency
\[\lambda = wavelength\]