A wave has wavelength 50 ∘A (a) Name the wave. (b) State its speed in vacuum. (c) State its one use.
(a) X-Ray (0.1Å to 100Å) (b) v = {Speed of Electromagnetic waves is constant in vaccum} (c) Used to examine the bones.
A wave has a wavelength 10−3nm. (a) Name the wave. (b) State its one property different from light.
Two waves A and B have wavelength 0.01 ∘A and 9000 ∘A respectively.
(a) Name the two waves.
(b) Compare the speeds of these waves when they travel in vacuum.