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Chapter 31: Problem 7

If you placed a screen at the location of a virtual image, would the image appear on the screen? Why or why not?

Short Answer

Expert verified
No, a virtual image will not appear on the screen when placed at its location. This is because the light rays do not actually come from the place where the virtual image appears to be, they just appear to diverge from that point.

Step by step solution

01

Understand the Nature of a Virtual Image

In optics, a virtual image is the image formed when the outgoing rays from a point on an object always diverge. The image appears to be located at the point of apparent divergence. Because the rays never really converge, a virtual image cannot be projected onto a screen.
02

Discuss the Behavior of a Virtual Image

When you place a screen at the location of a virtual image, the image will not appear on the screen. This is because the light rays do not actually come from the place where the virtual image appears to be.
03

Understand the Comparison with Real Image

In contrast, a real image is formed where light rays converge, therefore, it can be projected on a screen.

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Most popular questions from this chapter

A particular eye has a focal length of \(2.0 \mathrm{cm}\) instead of the \(2.2 \mathrm{cm}\) that would put a sharply focused image on the retina. (a) Is this eye nearsighted or farsighted? (b) What corrective lens is needed?

The cornea of the human eye has refractive index \(1.38,\) while the eye's lens has a graduated index in the range 1.38 to \(1.40 ;\) use 1.39 for this problem. For the aqueous humor between cornea and lens, \(n=1.34 .\) Find the angle through which light is deflected at the first surface of (a) the cornea and (b) the lens, if it's incident at \(20^{\circ}\) to the normal at each surface. Your result shows that the cornea is the dominant refractive element in the eye.

For what refractive index would the focal length of a plano-convex lens be equal to the curvature radius of its one curved surface?

Is the image on a movie screen real or virtual? How do you know?

Does a fish in a spherical bowl appear larger or smaller than it actually is?
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