Home
Class 12
PHYSICS
A short sighted person can see distinctl...

A short sighted person can see distinctly only those objects which lie between 10 cm and 100 cm from him. The power of the spectacle lens required to see a distant object is

A

`+0.5D`

B

`-1.0D`

C

`-10D`

D

`+4.0D`

Text Solution

Verified by Experts

The correct Answer is:
B

(b) Focal length,f=-d=-100 cm=-1 m
`therefore P=1/f=1/-1=-1D`
Promotional Banner

Topper's Solved these Questions

  • RAY OPTICS

    DC PANDEY|Exercise Exercise|171 Videos
  • RAY OPTICS

    DC PANDEY|Exercise medical entrance special format question|25 Videos
  • RAY OPTICS

    DC PANDEY|Exercise Checkpoint 9.6|20 Videos
  • NUCLEI

    DC PANDEY|Exercise C MADICAL ENTRANCES GALLERY|46 Videos
  • REFLECTION OF LIGHT

    DC PANDEY|Exercise Subjective|9 Videos

Similar Questions

Explore conceptually related problems

A certain person can see clearly objects lying between 20 cm and 250 cm from his eye. What spectacles are required to enable him to see distant objects clearly ? When he is wearing these spectacles, what is his least distance of distinct vision ?

A myopic person can see things clearly only when they lie between 10 cm and 100 cm from his eye. Which lens will enable him to see the moon clearly.

A person cannot see distinctly any object placed beyond 40cm from his eye. Find the power of lens whicTFwill enable him to see distant stars clearly is?.

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly?

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly ?

A person cannot see the objects distinctly, when placed at a distance less than 100 cm . What is the power of the spectacles that he should use to see clearly the objects placed at 25 cm ?