The wavelength of a wave doubles as it travels
from medium A into medium B. Compared to the
wave in medium A, the wave in medium B has
(1) half the speed
(2) twice the speed
(3) half the frequency
(4) twice the frequency
The wavelength of a wave doubles as it travels from medium A into medium B. Compared to the wave in medium A, the wave in medium B has (1) half the speed, as long as this is referring to the same chart as before.
