HUMAN EYE AND COLORFUL WORLD

The shape of eye-ball is nearly _________________

• Elliptical

• Oval

• Circular

• Spherical

Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?

• Rainbow

• Twinkling of stars

• Advanced sunrise and delayed sunset

• Stars seem higher than they actually are

·           What is the condition of the ciliary muscles while watching a distant object? How does this influence the focal length of the eye lens?

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

• 0 and infinity

• 0 and 25 cm

• 25 cm and infinity

• 25 cm and 150 cm.

·           A person is not able to see objects beyond 1.3 m. What remedy can you suggest for this defect?

·           In a myopic eye, the image of the object is formed

• behind the retina

•      on the retina

• infront of the retina

• on the blind spot