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Apparent Depth

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While moving a pic is being screened , a boy introduced a glass slab of thickness 3cm & refractive index 1.5 b/w the projector & the screen . in order to have a clear pic on the screen , the screen shoud be moved through a distance of?? A. 1cm away B. 1cm nearer C. 2cm away D. 3cm away

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Q. While a moving picture is being screened, a boy introduced a glass slab thickness

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and refractive index

1.5

between the projector and the screen. In order to have a clear picture on the screen, the screen show to be moved through a distance of :

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μ

then the thickness of the slab is:

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