Question
Asked Dec 26, 2019
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Find the object distances (in terms of f ) for a thin converging
lens of focal length f if (a) the image is real and the
image distance is four times the focal length and (b) the
image is virtual and the absolute value of the image distance
is three times the focal length. (c) Calculate the magnification
of the lens for cases (a) and (b).

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Expert Answer

Step 1

a)

For converging lens

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v= 4f 4f u f 3 =-1.33f

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Step 2

b)

...
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v=-3f 1 1_1 1 1 1 -3f u l =--f =-0.75f

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Science

Physics

Ray Optics

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