The actual situation is shown in the given degree 
θ+40∘⇒θ=90∘=90−40=50∘
Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle, θ after reflection falls on second mirror and is reflected from there…
NEET UG 2013 — Physics Optics
2013mcqeasy
Two plane mirrors are inclined at 70∘. A ray incident on one mirror at angle, θ after reflection falls on second mirror and is reflected from there parallel to first mirror. The value of θ is:
Official previous-year question
Held on 30 Apr 2013 · Verified 9 Jul 2026.
Options
- A
45∘
- B
30∘
- C
55∘
- D
50∘
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Optics in other years
More NEET UG Optics questions
Two thin lenses of focal lengths f₁ = +20 cm and f₂ = -10 cm are in contact. The power of the combination is:
2026easy
The refractive index of glass is 1.5. The speed of light in glass is:
2026easy
In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power $(p)$ and magnification $(m)$ for each lens will be, respectively
2025medium
A microscope has an objective of focal length 2 cm , eyepiece of focal length 4 cm and the tube length of 40 cm . If the distance of distinct vision of eye is 25 cm , the magnification in the microscope is :
2025medium
The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at $22.5^{\circ}$ from the polarization axis of one of the polaroid, is ( $\mathrm{I}_0$ is the intensity of polarised light after passing through the first polaroid):
2025medium
Other Physics topics for NEET UG
Keep practicing Optics
Work through every NEET UG Optics PYQ, year by year.