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| Which of the items above will allow you to see around a corner from where you are standing? |
A) (i) only
B) (iii) only
C) (i) and (ii)
D) (i) and (iii)
Correct Answer: B
Solution :
Figure (iii) is periscope which is used to see around the corners. It is based upon the principle of rectilinear propagation of light and reflection of light.
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