The angle which the refracted ray makes with the normal
The ratio of sine of angle of incident to the sine of angle of refraction
A spherical mirror which is polished from outside so that the inner hollow surface of the sphere reflects light
The distance between pole and focus of a spherical mirror
An image that can be obtained on the screen
A circular arc of seven colours formed in the sky
The band of seven colours of white light
The component of white light which suffers maximum deviation on splitting of white light through a prism