Describe how photo is created by a aircraft mirror.Distinguish between real and virtual images.Find the location and characterize the orientation of an image created by a aircraft mirror.

You are watching: If you walk toward a mirror at a certain speed, the relative speed between you and your image is


You only have to look as far as the nearest bathroom to find an instance of picture formed by a mirror. Images in a aircraft mirror are the very same size together the object, are situated behind the mirror, and are oriented in the same direction together the thing (i.e., “upright”).

To understand just how this happens, take into consideration (Figure). Two rays arise from suggest P, strike the mirror, and reflect into the observer’s eye. Keep in mind that we use the law of enjoy to construct the reflect rays. If the reflected rays are prolonged backward behind the mirror (see dashed lines in (Figure)), lock seem to originate from point Q. This is whereby the picture of suggest P is located. If us repeat this procedure for suggest

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) is the distance from the mirror to the object (or, an ext generally, indigenous the center of the optical facet that create its image). Similarly, the photo distance (denoted
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Summary

A plane mirror always forms a virtual photo (behind the mirror).The image and object space the same distance from a flat mirror, the picture size is the very same as the object size, and the picture is upright.
What space the differences between real and also virtual images? How deserve to you tell (by looking) whether picture formed through a solitary lens or winter is genuine or virtual?


Virtual photo cannot it is in projected ~ above a screen. You cannot distinguish a real image from a virtual picture simply by judging from the image perceived through your eye.


Yes, you have the right to photograph a virtual image. For example, if you picture your reflection native a airplane mirror, you gain a photo of a online image. The camera concentrates the light the enters its lens to form an image; whether the resource of the light is a real object or a reflection from winter (i.e., a digital image) does no matter.


No, you can see the real picture the same means you can see the online image. The retina of her eye efficiently serves together a screen.


Devise an setup of mirrors enabling you to view the earlier of your head. What is the minimum number of mirrors essential for this task?


If you great to view your whole body in a level mirror (from head to toe), how tall have to the mirror be? walk its size rely upon your distance away indigenous the mirror? carry out a sketch.


The mirror have to be fifty percent your size and also its top edge have to be at the level of your eyes. The size does not count on your street from the mirror.


Consider a pair of flat mirrors that space positioned so the they type an edge of 120. Things is placed on the bisector in between the mirrors. Construct a ray diagram as in (Figure) to show how countless images space formed.


Consider a pair of level mirrors that room positioned so the they type an angle of 60. An object is put on the bisector in between the mirrors. Build a beam diagram as in (Figure) to present how many images are formed.

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By using an ext than one flat mirror, build a beam diagram showing how to produce an inverted image.


Glossary

plane mirrorplane (flat) mirroring surfaceimage distancedistance of the photo from the main axis of the optical aspect that to produce the imagemagnificationratio of image size to object sizeobject distancedistance of the thing from the central axis the the optical facet that produces its imagereal imageimage that have the right to be projected onto a screen due to the fact that the beam physically go v the imagevirtual imageimage that cannot it is in projected top top a screen since the rays do not physically go through the image, lock only appear to originate from the image