Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Find the focal length of a lens of power – 2.0 D. What type of lens is this?

Q 16.     Find the focal length of a lens of power – 2.0 D. What type of lens is this?

Answers (1)

best_answer

\\f=\frac{1}{P}\\ f=\frac{1}{-2}\\ f=-0.5\ m\\ f=-50\ cm

The lens is concave because it's focal length is negative and is equal to -50 cm.

Posted by

Sayak

View full answer

Similar Questions

Trending Articles/News

anam-khan

CBSE Class 10 Second Board Result 2026 LIVE: 10th scorecard for over 6.68 lakh soon; websites to check
anam-khan

CBSE class 10 2nd board exam result date 2026 likely soon; here's what we know
anam-khan

CBSE 10th Second Board Result 2026 Date LIVE: When and where to check Class 10 session 2 results; direct link

Latest Question