Ray Optics

JEE Main level, single correct, medium

16 of 295

Question 16 of 295

To get three images of a single object, one should have two plane mirrors at an angle of

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Answer: (B) 90∘90^{\circ}

According to Image formula
n=360θ−1⇒3=360θ−1\mathrm{n}=\frac{360}{\theta}-1 \Rightarrow 3=\frac{360}{\theta}-1
⇒360θ=4⇒θ=3604=90\Rightarrow \frac{360}{\theta}=4 \Rightarrow \theta=\frac{360}{4}=90

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JEE Main 2025 Apr 2 Shift 1 question paper

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