Home
Class 12
PHYSICS
A normal eye is not able to see objects ...

A normal eye is not able to see objects closer than 25 cm because

A

the focal length of the eye is 25 cm

B

the distance of the retina from the eye-lens is 25 cm

C

the eye is not able to decrease the distance between the eye-lens and the retina beyond a limit

D

the eye is not able to decrease the focal length beyond a limit

Text Solution

Verified by Experts

The correct Answer is:
D

Because, the focal length of eye lens can not decrease beyond a certain limit.
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|26 Videos
  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise - 1 : Concept Builder (Topicwise)(Topic 4 : Prism and Dispersion of Light)|9 Videos
  • PHYSICAL WORLD, UNITS AND MEASUREMENTS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept Applicator|30 Videos
  • SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS

    DISHA PUBLICATION|Exercise EXERCISE -2: CONCEPT APPLICATOR|25 Videos

Similar Questions

Explore conceptually related problems

Why is normal eye not able to see clearly the objects placed closer than 25 cm ?

A norml eye is unable to see objects at a distance less than distance of distinct vision. If is because

With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects. Explain, why a normal eye is not able to see distincly the objects placed closer than 25 cm, without putting any strain on the eye.

A person is not able to see objects farther than 80 cm clearly, while another person is not able to see objects beyond 120 cm, clearly. The powers of the lenses used by them for correct vision are in the ratio -

We are able to see moon because

The eye of a man cannot see the object closer than 0.5 m. Give the focal length and power of corrective lens he should use.(Nearest distance of vision is 25 cm)