Ask a Doubt
Request a call back

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

CBSE Class 8 Answered

an equiconvex lens is placed over a plane mirror as indicated in diagram and object placed 12 cm from system such that image and object inside a liquid is power between mirror and lens and for the same object Rai image now formed at 24 cm from the refractive index of the liquid word will be system such that image and object inside now you liquid is power between mirror and
question image
Asked by pavansguntur | 12 May, 2020, 04:00: PM
answered-by-expert Expert Answer
F o c a l space l e n g t h space o f space e q u i c o n v e x space l e n s space f 1 space equals space 12 space c m space T h e space l i q u i d space p o u r e d space i s space l i k e space a space m i r r o r. space L e t space t h e space f o c a l space l e n g t h space o f space l i q u i d space b e space f subscript 2 space F o c a l space l e n g t h space o f space s y s t e m space left parenthesis c o n v e x space l e n s space plus space l i q u i d right parenthesis space equals space 24 space c m space E q u i v a l e n t space f o c a l space l e n g t h space 1 over f equals space 1 over f subscript 1 space plus space 1 over f subscript 2 space 1 over 24 space equals space 1 over 12 space plus 1 over f subscript 2 space 1 over f subscript 2 space equals space 1 over 24 minus 1 over 12 space space T h u s comma space f 2 space equals space minus 24 space c m space R e f r a c t i v e space i n d e x space o f space l e n s space mu subscript 1 space equals space 3 divided by 2 space R a d i u s space o f space c u r v a t u r e space a r e space R space a n d space minus space R space 1 over f subscript 1 space equals left parenthesis mu subscript 1 space space minus space 1 right parenthesis space open parentheses 1 over R minus space fraction numerator 1 over denominator negative R end fraction close parentheses space 1 over 12 space equals space open parentheses 3 over 2 space space minus space 1 close parentheses space 2 over R space R space equals space 24 open parentheses 1 half close parentheses space equals space 12 space c m space L e t space R I space o f space l i q u i d space b e space mu subscript 2 space T h e space r a d i u s space o f space c u r v a t u r e space o f space l i q u i d space i n space p l a n e space m i r r o r space s i d e space w i l l space b e space infinity space R a d i u s space o f space c u r v a t u r e space o f space l i q u i d space i n space l e n s space s i d e space R space equals space minus 12 space c m space 1 over f subscript 2 space equals space open parentheses mu subscript 2 minus space 1 close parentheses open parentheses 1 over R minus space 1 over infinity close parentheses fraction numerator 1 over denominator negative 24 end fraction space equals space space open parentheses mu subscript 2 minus space 1 close parentheses open parentheses fraction numerator 1 over denominator negative 12 end fraction minus space 1 over infinity close parentheses space fraction numerator 1 over denominator negative 24 end fraction space equals space space open parentheses mu subscript 2 minus space 1 close parentheses open parentheses fraction numerator 1 over denominator negative 12 end fraction close parentheses space fraction numerator negative 12 over denominator negative 24 end fraction space equals space space open parentheses mu subscript 2 minus space 1 close parentheses space 1 half space plus 1 space equals space mu subscript 2 space space space mu subscript 2 space equals space 3 over 2 space
Answered by Shiwani Sawant | 12 May, 2020, 09:31: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 8 - Science
Will Rays be reflected back in diffused reflection?
Asked by pra.pihu | 08 Feb, 2024, 07:36: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
why do we use concave mirrors in headlamps?
Asked by madhusrimasavarapu | 24 Jan, 2023, 05:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Why I see ny in age in nirrer and not in tree tadle chair
Asked by khushalsharma66.8misj | 28 Jun, 2021, 12:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
what is reflection of light  
Asked by priyanshjhalani10.8misj | 28 Jun, 2021, 12:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
what is diffused reflection
Asked by rupamkumari91165 | 27 Mar, 2021, 07:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Find out the no. of images that can be formed when two plane mirrors are placed at an angle of 90 degree
Asked by kruttikamuralimohan | 01 Mar, 2021, 09:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
18. How many images of an object will be formed if it is placed between two parallel plane mirrors separated by 30 cm? a) 15 cm b) 30 cm c) 60 cm d) Infinite
Asked by jayant.3780 | 20 Feb, 2021, 12:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
is the direction of incident and reflected ray same in a plane mirror?
Asked by peeyushjain389 | 27 Sep, 2020, 12:39: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
an equiconvex lens is placed over a plane mirror as indicated in diagram and object placed 12 cm from system such that image and object inside a liquid is power between mirror and lens and for the same object Rai image now formed at 24 cm from the refractive index of the liquid word will be system such that image and object inside now you liquid is power between mirror and
question image
Asked by pavansguntur | 12 May, 2020, 04:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
device used to split white light into 7 colours
Asked by varsha.bzp | 08 Feb, 2020, 04:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×