The splitting of white light into its component colors is called:

Which instrument uses lenses to view very small objects?

The visible spectrum lies between:

Which color has the shortest wavelength in the visible spectrum?

The angle between the incident ray and the normal is called:

The angle between the reflected ray and the normal is called:

Gravitational lensing provides evidence for:

Which defect of vision occurs in old age due to loss of lens elasticity?

Which type of mirror always forms a virtual, erect, and diminished image?

The part of the eye that controls the amount of light entering is:

The minimum angle of incidence for which total internal reflection occurs is called:

Which phenomenon explains the formation of a rainbow?

In a convex lens, parallel rays of light after refraction meet at:

Color blindness is mainly due to defect in:

Gravitational lensing occurs due to:

The image formed on the retina of the human eye is:

Which lens is thicker at the center than at the edges?

Which objects commonly act as gravitational lenses?

The power of a lens is measured in:

A lens with focal length 0.5 m has power: