MPSC Combined 2023 GS Paper 1 — Question 37
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जर एखादी वस्तू 36° अंशात तिरप्या असणाऱ्या दोन समतल आरशांमध्ये समरूप ठेवली, तर किती प्रतिमा तयार होतील ? If an object is placed symmetrically between two plane mirrors inclined at an angle of 36°, then how many images will be formed ?
a)8
b)9✓ Correct
c)10
d)11
The number of images formed by two plane mirrors inclined at an angle theta is given by (360/theta) - 1 if 360/theta is even. Here 360/36 = 10 (even), so 10 - 1 = 9.