1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Optics, the resulting power of the lens .?

  1. Nov 3, 2012 #1
    optics, the resulting power of the lens.....??

    a thin lens , made of refractive index 1.5,has a front surface +11 d power and back surface -6d ..if this lens is submerged in a liquid of refractive index 1.6, the resulting power of the lens is.....

    a)-1 dioptre

    b)+1 dioptre

    c)-5 dioptre

    d)+5 dioptre

    plzzzz answer ,,,and why plz ..its emergency:frown:..
     
  2. jcsd
  3. Nov 4, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi mero coactail! welcome to pf! :wink:
    what equations are relevant here?

    show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook