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CBSE Class 10 Answered

why can't we write mirror formula as f = v + u
Asked by sivashrishti | 30 May, 2020, 03:42: PM
Expert Answer
Mirror formula is given as, 
 
1 over f equals 1 over v plus 1 over u space... space left parenthesis 1 right parenthesis

O n space s i m p l i f y i n g space t h e space r i g h t space h a n d space s i d e space o f space t h e space a b o v e space e q u a t i o n space w e space g e t comma space
1 over f equals 1 over v plus 1 over u space equals space fraction numerator u plus v space over denominator v u end fraction

T h u s comma space
f space equals space fraction numerator v u over denominator v plus u end fraction space... left parenthesis 2 right parenthesis
T h u s comma space
space fraction numerator v u over denominator v plus u end fraction space not equal to space v plus space u space

H e n c e comma space w e space c a n n o t space w r i t space m i r r o r space f o r m u l a space a s space f space equals space v plus u space

M i r r o r space f o r m u l a space c a n space b e space w r i i t e n space a s comma space
f space equals space fraction numerator v u over denominator v plus u end fraction
Answered by Shiwani Sawant | 30 May, 2020, 05:08: PM
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