Front

The muscular diaphragm that controls the size of the pupil is

Back

Iris

Front

Having two eyes facilitates in A : Increasing the field of view B : Bringing three-dimensional view C : Developing the concept of distance/ size Then the correct option is/are

Back

A, B and C

Front

The black opening between the aqueous humour and the lens is called --------------

Back

pupil

Front

Near and far points of a young person's normal eye respectively are:

Back

25 cm and infinity

Front

The defect of vision in which the person is able to see distant objects distinctly but cannot see nearby objects clearly is called

Back

All above

Front

The ability of eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called

Back

Power of accommodation of the eye

Front

The image formed on the retina of the human eye is

Back

real and inverted

Front

When white light enters a prism, it gets split into its constituent colours. This is due to _________________.

Back

different refractive index for different wavelength of each colour

Front

The air layer of atmosphere whose temperature is less than the hot layer behaves as optically?

Back

denser medium

Front

Refraction of light by the earth’s atmosphere due to variation in air density is called -------------

Back

atmospheric refraction