Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Optics Mirrors and Images
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
1
20 cm from the plane mirror, it would be a virtual image
2
20 cm from the lens, it would be a real image
3
30 cm from the lens, it would be a real image.
4
More than one of the above
5
None of the above