NEET2021Physics-Optics
NEET 2021 Physics Lenses and Mirrors MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of:
A
20 cm from the lens, it would be a real image.
B
30 cm from the lens, it would be a real image.
C
30 cm from the plane mirror, it would be a virtual image.
D
20 cm from the plane mirror, it would be a virtual image.
Correct Answer
Option D
Detailed Explanation
Using the lens formula, the image is formed at 20 cm from the lens. The plane mirror reflects this image back, forming a real image at the same location.
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