Physics · 2021
NEET 2021 · 12 September · Code M1 · Q37
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…
A point object is placed at a distance of $\displaystyle 60$ cm from a convex lens of focal length $\displaystyle 30$ cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of $\displaystyle 40$ cm from it, the final image would be formed at a distance of :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 20$ cm from the plane mirror, it would be a virtual image.
More from Ray Optics and Optical Instruments
- In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all…2023
- Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 ×…2022
- In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then…2025
- A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is…2022
- A ray of monochromatic light is passing through an equilateral prism (ABC) as shown in the figure. The…2026
- Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5, respectively. The medium Q having a…2026
- A microscope has an objective of focal length 2 cm, eyepiece of focal length 4 cm and the tube length of 40…2025
- Two thin lenses are of same focal lengths (f), but one is convex and the other one is concave. When they are…2023
NEET (UG) 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.