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Chapter 34: Q4P (page 1038)

Figure 34-33 shows an overhead view of a corridor with a plane mirror Mmounted at one end. A burglar Bsneaks along the corridor directly toward the center of the mirror. Ifd=3m, how far from the mirror will she from the mirror when the security guardScan first see her in the mirror?

Short Answer

Expert verified

The distance of the burglar from the mirror when the security guard Scan first see her in the mirror is 1.5m.

Step by step solution

01

Identification of the given data

The given data is listed as follows,

The value ofd is 3m.

02

Description of the law of reflection

The law states that when light falls upon a plane surface it is so reflected that the angle of reflection is the same as that of the angle of incidence and that the incident ray, reflected ray, and normal ray all lie in the plane of incidence.

03

Determination of the distance of the burglar from the mirror when the security guard  can first see her in the mirror.

When the security guard is barely able to see B, the light rays fromB must reflect to Soff the edge of the mirror.

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Most popular questions from this chapter

An object is placed against the center of a spherical mirror and then moved 70 cm from it along the central axis as the image distance i is measured. Figure 34-48 gives i versus object distance p out to ps=40cm. What is the image distance when the object is 70 cm from the mirror?

A concave mirror has a radius of curvature of 24cm. How far is an object from the mirror if the image formed is (a) virtual and 3.0 times the size of the object, (b) real and 3.0 times the size of the object, and (c) real and 1/3 the size of the object?

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