Human Eye and Colourful World

An image is formed on

• Iris

• Pupil

• Retina

• Cornea

Light enters the eye through a thin membrane called the

• Iris

• Pupil

• Retina

• Cornea

Tags

NGSS.MS-LS1-8

The shape of eye-ball is nearly _________________

• Elliptical

• Oval

• Circular

• Spherical

Following controls and regulates the amount of light entering the eye

• Iris

• Pupil

• Retina

• Corena

_________________ send signals to the brain

• Optical nerve

• Aqueous Humour

• Viterous humour

• Eye lens

When the light is very bright, the diameter of pupil

• Expends

• Contract

• Remain same

• All of these

When an object is placed closer to eye ____________

• the ciliary muscles contract

• curvature of the eye lens increases

• Eye lens become thicker

• All of the above

To see an object comfortably and distinctly, we must hold it about _______ cm from our eyes.

• 10

• 25

• 15

• infinity

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

• Accommodation

• Accomplish

• Composition

• None of the above

The farthest point upto which the eye can see objects clearly is ____________ for a normal eye.

• 25 cm

• 15 cm

• infinity

• 1 km