Physics
If in the question (1) given above the object is placed symmetrically between the mirrors, then the number of images formed will be :
- n
- n + 1
- n - 1
- 0
Reflection
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Answer
n - 1
Reason — There are two cases possible:
Case 1 — If angle θ° between the mirrors is such that is odd:
- the number of images is n, when the object is placed asymmetrically between the mirrors.
- the number of images is n - 1, when the object is placed symmetrically (i.e., on the bisector of the angle) between the mirrors.
Case 2 — If is even, the number of images is always n - 1 for all positions of object in between the mirrors.
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