Physics · 2020
JEE Main · 6 September 2020, Shift 1 · Q15
A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a distance of 2 m…
A point like object is placed at a distance of $\displaystyle 1$ m in front of a convex lens of focal length $\displaystyle 0.5$ m . A plane mirror is placed at a distance of $\displaystyle 2$ m behind the lens. The position and nature of the final image formed by the system is :
Official answer
(2)
2.$\displaystyle 6$ m from the mirror, virtual
(3)
$\displaystyle 1$ m from the mirror, virtual
NTA’s answer key accepts either.
More from Ray Optics
- A convex lens of refractive index 1.5 and focal length f=18 cm is immersed in water. The difference in focal lengths of the given lens when it is in…2026
- A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius of curved surfaces are also…2026
- For a transparent prism, if the angle of minimum deviation is equal to its refracting angle, the refractive index n of the prism satisfies.2026
- A slanted object AB is placed on one side of convex lens as shown in the diagram. The image is formed on the opposite side. Angle made by the image…2025
- A biconvex lens of refractive index 1.5 has a focal length of 20 cm in air. Its focal length when immersed in a liquid of refractive index 1.6 will…2024
- Distance between object and its image (magnified by -1/3 ) is 30 cm. The focal length of the mirror used is (x/4) cm, where magnitude of value of x…2025
- A ray of light passing through an equilateral prism is having velocity 2.12 × 10^8 m / s in the prism material, then the minimum angle of deviation…2026
- A point source of light S, placed at a distance 60 cm infront of the centre of a plane mirror of width 50 cm, hangs vertically on a wall. A man walks…2021
JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.