Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

An equiconvex lens is cut into two identical plano convex lens. What is the ratio of focal lengths of equiconvex lens to that of plano convex lens...?
 
Asked by nayonikamenon15 | 11 Jan, 2016, 12:33: AM
answered-by-expert Expert Answer
Let the focla legth of the equiconvex lens be f and of each identical plano convex lens be f'
For the equiconvex lens, the focal length is 

begin mathsize 12px style 1 over straight f equals open parentheses straight mu minus 1 close parentheses open parentheses 1 over straight R plus 1 over straight R close parentheses equals fraction numerator 2 open parentheses straight mu minus 1 close parentheses over denominator straight R end fraction For space each space identical space plano space convex space lens comma space the space focal space length space is fraction numerator 1 over denominator straight f apostrophe end fraction equals fraction numerator open parentheses straight mu minus 1 close parentheses straight R over denominator 2 end fraction equals fraction numerator 1 over denominator 2 straight f end fraction therefore straight f apostrophe equals 2 straight f or space fraction numerator straight f over denominator straight f apostrophe end fraction equals 1 half end style
Answered by Yashvanti Jain | 11 Jan, 2016, 06:23: PM
CBSE 12-science - Physics
Asked by santhoshsindoora | 27 Sep, 2023, 08:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by marvellouskyndiah | 17 May, 2023, 08:07: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by bmahalik21 | 04 Mar, 2023, 07:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by hanskaraja | 05 Aug, 2022, 11:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by Dark | 05 Jan, 2022, 11:54: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by nagendramanikireddy999999 | 29 May, 2021, 11:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by manjulamurali1979 | 19 May, 2020, 09:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by tyeswanthkumar37 | 14 May, 2020, 10:58: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by polyrelation | 15 Mar, 2019, 04:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by polyrelation | 15 Mar, 2019, 04:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×