Chapter 5: Q2DQ (page 1151)
For the situation shown in Fig. 34.3, is the image distance s′ positive or negative? Is the image real or virtual? Explain your answers
The image will be virtual and erect
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When a converging lens is immersed in water, does itsfocal length increase or decrease in comparison with the value inair? Explain.
34.14 For a convex spherical mirror that has focal length , what is the distance of an object from the mirror’s vertex if the height of the image is half the height of the object?
Can an image formed by one reflecting or refractingsurface serve as an object for a second reflection or refraction?Does it matter whether the first image is real or virtual? Explain.
Light scattered from the blue sky is strongly polarized because of the nature of the scattering process described in Section 33.6. But light scattered from white clouds is usually not polarized. Why not?
You take a lens and mask it so that light can pass through only the bottom half of the lens. How does the image formed by the masked lens compare to the image formed before masking?
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