Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
The plane surface of a plano-convex lens of focal length F is silvered. It will behave as
PhysicsRay OpticsNEET
Options:
  • A plane mirror
  • B convex mirror of focal length 2F
  • C concave mirror of focal length F2
  • D none of these
Solution:
1037 Upvotes Verified Answer
The correct answer is: concave mirror of focal length F2
Focal length of plano convex lens f2=f

Focal length of plane surface mirror fm

Equivalent power of the system

P2f21fmeq

P2f1eq

P1feq2feq

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.