Question

How many images of himself does an observer see if two adjacent walls and the ceiling of a rectangular room are mirror surfaced?​

Answer 1

Answer:

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For the two adjacent mirrors on walls, For one mirror on wall and other on ceiling, For another mirror on wall and other on ceiling, Total images = 3+3+3 = 9 images.

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Answer 2

Answer:

Step-by-step explanation:

If two mirrors are placed at an angle Ф, number of images would be  

n  

1

​  

=  

Φ

360

​  

−1

For the two adjacent mirrors on walls,

n  

1

​  

=  

90

360

​  

−1=4−1=3

For one mirror on wall and other on ceiling,

n  

2

​  

=  

90

360

​  

−1=4−1=3

For another mirror on wall and other on ceiling,

n  

3

​  

=  

90

360

​  

−1=4−1=3

Total images =3+3+3=9 images.