Question
Physics Question on Ray optics and optical instruments
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 plane mirror, it would be a virtual image.
B
20 cm from the lens, it would be a real image
C
30 cm from the lens, it would be a real image.
D
30 cm from the plane mirror, it would be a virtual image.
Answer
20 cm from the plane mirror, it would be a virtual image.
Explanation
Solution
The correct answer is option (A): 20 cm from the plane mirror, it would be a virtual image.