The Human Eye - Grade 8

Adjustments of the focal length in the eye is done by the help of __________.

• Iris

• Ciliary Muscles

• Sclera

• Retina

The amount of light entering our eyes is controlled by __________

• Lens

• Pupil

• Iris

• Optic Nerve

The lens acts as a shutter and protects them from dust and injury.

• TRUE

• FALSE

In the eye, _________ acts as a screen for image formation.

Name two light-sensitive receptors in the retina.

• Rods, Pupil

• Rods, Sclera

• Cones, Lones

• Rods, Cones

Tags

NGSS.MS-LS1-8

Name any one non-optical aide

The least distance which a normal eye can see a object clearly is called ____________.

Find the Hypermetropic Eye. (Diagram)

• 
• 

Who developed Braille System?

• Louise Braille

• Simon Braille

• Rene Braille

If an object is removed in front of our eye, its retained on the retina for about__________ of a second.

• 1/5 th

• 1/6 th

• 1/16 th

• 1/18 th

Tags

NGSS.MS-LS1-8