Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Questions  >>  Archives  >>  JEEMAIN-2014
Answer
Comment
Share
Q)

A thin convex lens made from crown glass $\bigg(\mu=\large\frac{3}{2}\bigg)$ has focal length $f.$When it is measured in two different liquids having refractive indices $\large\frac{4}{3}$ and $\large\frac{5}{3}$, it has the focal lengths $f_1$ and $f_2$ respectively. The correct relation between the focal lengths is

$(A)\; f_2 > f\; and \;f_1\; becomes\;negative \\ (B)\; f_1\; and\; f_2\; both\; become\; negative \\(C)\;f_1 = f_2 < f \\(D)\;f_1 > f\; and\; f_2\; becomes \;negative $

1 Answer

Comment
A)
The correct relation between the focal lengths is $f_1 > f\; and\; f_2$ becomes negative
Hence D is the correct answer.
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...