A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
The radius of curvature of the convex surface of a planoconvex lens is 10 cm. What is the focal length of the planoconvex lens?(Here, "mu" = 1.5)
a) 10 cm
b) 20 cm
c) 15 cm
d) 5 cm
 2 years ago
The radius of curvature of the convex surface of a planoconvex lens is 10 cm. What is the focal length of the planoconvex lens?(Here, "mu" = 1.5) a) 10 cm b) 20 cm c) 15 cm d) 5 cm

This Question is Closed

salini
 2 years ago
Best ResponseYou've already chosen the best response.1i dont think r.i is gonna affect the focal length as R=2f it is accepted and derived

Taufique
 2 years ago
Best ResponseYou've already chosen the best response.0\[1/f=((\mu2\div \mu1)1)(1\div R11\div R2)\] this is lens maker formula.. here \[\mu1\] is refractive index for air and\[\mu 2\] is the refractive index of the lens(medium).R1 is 10cm and R2 is the infinity(for plane). put this value in the above equation and find \[f\].

Aadarsh
 2 years ago
Best ResponseYou've already chosen the best response.0Yeah got it. Thanks a lot. Answer = 20 cm

Aadarsh
 2 years ago
Best ResponseYou've already chosen the best response.0@salini didi, I found this question in my study material, and "R = 2f" answer did not match the correct option. @Taufique bhaio, ur answer is absolutely correct. Thanks once again.

Aadarsh
 2 years ago
Best ResponseYou've already chosen the best response.0I request both of you to try 3 more questions. The links are given below. Please help me. 1) http://openstudy.com/study?login#/updates/4f7abf86e4b0884e12aac466 2) http://openstudy.com/study?login#/updates/4f7abd41e4b0884e12aac33c 3) http://openstudy.com/study?login#/updates/4f7abb4de4b0884e12aac1e7

Aadarsh
 2 years ago
Best ResponseYou've already chosen the best response.0Post the answers in the respective links itself.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.