Each color does have it's own frequency an wave length.
Option. c
freezing and melting temperature of wster is=0 degree celcius
roght?
but boiling temperature is=100degree celcius
Because it shows a specific type of flow and arrows that show the portion of the flow hope this helps or u can just google it :P
Answer:
Green, blue, indigo and violet.
Explanation:
The velocity of a wave is given by

where
f = Frequency = 
= Wavelength

The wavelength of the wave is 550.459 nm
Green light has wavelength which ranges from 500-565 nm.
So, the light which observed is green light and lower in wavelength than green light i.e., green, blue, indigo and violet.