The splitting up of white light into colours is called
Velocity and wavelength of light are related by a relation
_______determines speed of light in a medium
For air, the refractive index is
A star appears twinkling in the sky because of ________ by the atmosphere.
Red light is used in traffic signals because
Rainbow formation is due to _____ water droplets
The velocity of light is _______
When a ray of light travels from one medium to another, it bends. This phenomenon
is called.
We can see objects because of
The group of rays is ________
Violet and red light _______ wavelengths.
When a beam of light is passed through a colloidal solution, the light will be
The path of light is _______
On a rainy day, small oily films on water show brilliant colours. This is due to
When light travels from rarer to denser medium, the refracted ray is _____ the
normal