Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  •  Radii of curvature of a convex lens are and <img alt="30 \mathrm{~cm}" src="https

 Radii of curvature of a convex lens are 20 \mathrm{~cm} and 30 \mathrm{~cm} and its focal length if 24 \mathrm{~cm}. Refractive index of the lens will be

Option: 1

1.33


Option: 2

1.5


Option: 3

1.71


Option: 4

None of these


Answers (1)

best_answer

\mathrm{\text { As } \frac{1}{f}=(\mu-1)\left(\frac{1}{R_{1}}-\frac{1}{R_{2}}\right) }

\mathrm{\therefore \frac{1}{24}=(\mu-1)\left(\frac{1}{20}-\frac{1}{-30}\right)=\frac{(\mu-1)}{12} \Rightarrow \mu=1.5}

Posted by

Kuldeep Maurya

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

NTA Overhaul: 1,000 secure exam centres, biometrics to prevent fraud, question paper changes, suggests panel
anam-khan

NEET syllabus 2025 out; NMC uploads subject-wise topics
anam-khan

What changes in NEET UG? Experts’ panel suggests multi-stage exam, security overhaul, simpler process to NTA

Latest Question