To see an erect image of a tall building using a mirror, we would select a concave mirror. Concave mirrors are capable of producing virtual and erect images when the object is placed beyond the focal point.
Here's a ray diagram to illustrate the formation of the image of the building using a concave mirror:
1. Draw the concave mirror (M) with its principal axis (dashed line) and focal point (F) marked.
2. Place the object (building) beyond the focal point (F) along the principal axis.
3. Draw two incident rays from the top (A) and bottom (B) of the building:
- The ray from point A parallel to the principal axis will reflect and pass through the focal point F after reflection.
- The ray from point B directed towards the focal point F will reflect parallel to the principal axis after reflection.
4. Extend the reflected rays behind the mirror to locate the virtual image (A'B') of the building.
5. The virtual image (A'B') formed is upright (erect) and located behind the mirror.
Here's the ray diagram:
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F (Focal Point)
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----------------|------------- (Principal Axis)
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M (Concave Mirror)
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Object (Building) --> A ----- Incident Ray 1 --> / \ ---> Reflected Ray 1
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F (Focal Point)
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M (Concave Mirror)
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V (Virtual Image)
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Answer:
To see an erect image of a tall building using a mirror, you would choose a concave mirror. Concave mirrors can produce virtual, upright, and magnified images when the object is placed beyond the focal point. Here's a step-by-step explanation with a ray diagram:Start with a concave mirror with its principal axis drawn.Place the tall building beyond the focal point of the mirror.Draw two parallel rays from the top and bottom of the building, parallel to the principal axis, towards the mirror.The ray parallel to the principal axis will reflect through the focal point, and the ray passing through the focal point will reflect parallel to the principal axis.The point where these two reflected rays appear to converge is the virtual image of the building.This diagram illustrates how a concave mirror forms an erect and magnified image of a tall building:
\
\
\ Image of building
\
\
\
-----------------|------------------
Building F C F Mirror
In this diagram, "F" represents the focal point, "C" represents the center of curvature, and the vertical lines indicate the tall building. The dashed lines represent the reflected rays, and the intersection point represents the virtual image of the building.
Explanation:
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