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1. Compute for the number of images produced by a 2 separate mirrors at an angle of 45 degrees if the object is placed between the mirrors. Formula: N = (360/Angle) – 1

1. Compute for the number of images produced by a 2 separate mirrors at an angle of 45 degrees if the object is placed between the mirrors. Formula: N = (360/Angle) – 1

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Case Example:
On one wall there hang a picture 6 ft. x 4 ft. in dimension. On the opposite wall 15 ft. away is a plane mirror. What is the minimum size of the mirror for a
person who is standing 8 ft. away from the mirror to see the whole picture?

(The solution is on the picture)

Now, please answer questions 1 and 2

1. Compute for the number of images produced by a 2 separate mirrors at an angle of 45 degrees if the object is placed between the mirrors.
Formula:
N = (360/Angle) – 1

2. A sight testing chart measuring 120 cm x 80 cm, the long dimension being the vertical one is to be viewed by reflection in a plane mirror. Find the smallest size of the mirror that can be used if the chart is 3.25 meters away from the mirror and the observer’s eye is 2.75 meters away from the mirror. The lower edge of the chart is 1.5 meters above the ground. How high must the edge of
the mirror from the ground?

width of the mirror height of the mirror ΔΒΕΙ- ΔDEG AAEB = ACED base base base base alt alt alt alt Dimension of 4 6 the mirror 23 8. 15+8 1.39' x 2.08' 4 6. 23 23 23х «32 23х в48 23x 23 32 23x 48 23 23 23 x =1.39 ft. x = 2.08 ft.
Transcribed Image Text:width of the mirror height of the mirror ΔΒΕΙ- ΔDEG AAEB = ACED base base base base alt alt alt alt Dimension of 4 6 the mirror 23 8. 15+8 1.39' x 2.08' 4 6. 23 23 23х «32 23х в48 23x 23 32 23x 48 23 23 23 x =1.39 ft. x = 2.08 ft.
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