A wave has a wavelength 10−3nm. (a) Name the wave. (b) State its one property different from light.
(a)Gamma ray. (b) Gamma rays have strong penetrating power.
A wave has wavelength 50 ∘A (a) Name the wave. (b) State its speed in vacuum. (c) State its one use.
A wave passes from one medium to another medium. Mention one property of the wave, out of speed, frequency or wavelength
(a) which changes,
(b) which does not change.