Light

The ability of the eye lens to adjust its focal length is called:

A person who can see nearby objects clearly but cannot see distant objects is suffering from:

Which lens is used to correct Myopia?

The least distance of distinct vision for a normal human eye is:

The image of an object is formed on which part of the human eye?

Which of these is a natural source of light?

A ray of light that strikes a surface is called:

Shadows are formed because light:

What happens to the speed of light when it enters glass from air?

The SI unit of refractive index is:

A person suffering from Hypermetropia uses which type of lens?

The band of seven colors obtained by dispersion of white light is:

Which phenomenon is responsible for the blue color of the sky?

What type of image is formed on a cinema screen?

The point on the principal axis where all rays parallel to the principal axis meet after reflection is:

The color of light with the longest wavelength is:

An object is placed 10 cm in front of a plane mirror. The distance between the object and its image is:

Twinkling of stars is due to:

Which mirror can form both real and virtual images?

If the refractive index of water is 1.33 and glass is 1.5, in which medium does light travel faster?