Which of the following expressions gives the linear magnification produced by a concave mirror of radius of curvature r, if U and V are the object and image distances respectively?

a

\(\frac{V}{r}\) - 1

b

\(\frac{2V}{r}\) - 1

c

\(\frac{U}{r}\) - 1

d

\(\frac{2U}{r}\) - 1

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b

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Discussions (8)

Hydrocarbon1
5 years ago
Image

hrcenugu
7 years ago

i don't understand

flocci
8 years ago

2/r=1/u+1/v;multiply through by v it gives 2v/r=v/u+1;2v/r=M+1;M=2v/r -1

Jay -jay. west
11 years ago

Not clear

flocci
8 years ago

2/r=1/u+1/v;multiply through by v; 2v/r=v/u+1;2v/r=M+1;M=2v/r-1

Diamo2nd
2 months ago

myschool, the answer is (2v/r) -1
not (2u/r) -1

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