A plano convex lens, when silvered at its plane surface is equivalent to a concave mirror of focal length 28 cm. When its curved surface is silvered and plane not silvered, its equivalent to concave mirror of focal length 10 cm then the refractive index of material of lens is 29×n. Calculate n

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

answer is 0007.00.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

1fnet=−2f2−1fmCase (1)fnet =−281−28=−2fL−1∞⇒1fL=1561fnet =−2fL−1fm1−10=−2fL−1−R2⇒1R=92801fL=(μ−1)1R⇒μ=149

Watch 3-min video & get full concept clarity