Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the cornea is 20 D. Using this information, the distan

For a normal eye, the cornea of eye provides a converging power of 40 D and the least converging power of the eye lens behind the cornea is 20 D. Using this information, the distance between the retina and the cornea - eye lens can be estimated be:

Option: 1

1.5 cm


Option: 2

5 cm


Option: 3

2.5 cm


Option: 4

1.67 cm


Answers (1)

best_answer

As we learnt in

Optical power of a mirror -

P= -frac{1}{f}

 

- wherein

f= focal length with sign and is in meters unit of power = diopter

 

 

 

Given, P_{1}=40D

and, P_{2}=20D

We have P_{eff}=40D+20D=60D

\Rightarrow f=\frac{100}{P_{eff}}=\frac{100}{60}cm\:\:\:\Rightarrow f=1.67 cm

Posted by

Rishi

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET paper solver gang busted in Delhi, four held
anam-khan

PIL in Patna HC seeks CBI probe into ‘NEET paper leak case’, cancellation of exam
anam-khan

NEET UG 2024: SC refuses to stay result declaration over alleged paper leak

Latest Question