Home
Class 12
PHYSICS
The far point of a myopic person is 150 ...

The far point of a myopic person is `150 cm` in front of the eye. Calculate the focal length and power of a lens required to enable him to see distant objects clearly.

A

50 cm, 2D

B

`-50cm, -2D`

C

100 cm, 1D

D

`-150 cm, -0.66D`

Text Solution

Verified by Experts

The correct Answer is:
D

`u= -oo, v=-150cm`
`(1)/(f) = (-1)/(150) +(1)/(oo)`
`f= -150 cm`
`P=(100)/(-150) = -0.66D`
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 55

    NTA MOCK TESTS|Exercise PHYSICS (SUBJECTIVE NUMERICAL)|10 Videos
  • NTA TPC JEE MAIN TEST 54

    NTA MOCK TESTS|Exercise PHYSICS|30 Videos
  • NTA TPC JEE MAIN TEST 56

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

Similar Questions

Explore conceptually related problems

The far point of a person having myopia is 200 cm in front of the eye. Find the focal length and power of lens required to enable him see the distant objects clearly.

The far point of a myopic person is 120 cm in front of the eye. Calculate the power of the lens required to enable the person see distant object clearly.

The near point of a person having hypermetropia is 60 cm in front of the eye. Find the focal length and power of lens required to enable him to see the objects clearly placed at 25 cm from the eye.

The for point of a myopic person is 80 cm in front of the eye. What is the power of the lens required to enable him to see very distant objects clearly? In what way does the corrective lens help the above person? Does the lens magnify very distant object? Explain.

(a) The far point of a myopic person is 80 cm . In front of the eye. What is the power of the lens required to enable him to see very distant objects clearly ? (b) In what way does the corrective lens help the person above ? Does the lens magnify very distant objects ? Explain carefully. ( c) The person above prefers to remove his spectacles while reading a book. Explain why ?

The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?

A person's far point is at 2 m . Find nature, focal length and power of the lens he must use to see distant objects clearly.