Physics · 2018
NEET 2018 · 6 May · Code AA · Q20
An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm…
An object is placed at a distance of $\displaystyle 40$ cm from a concave mirror of focal length $\displaystyle 15$ cm. If the object is displaced through a distance of $\displaystyle 20$ cm towards the mirror, the displacement of the image will be
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 36$ cm away from the mirror
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 layers are thin)?2023
- Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a diameter of 2 m is:2020
- Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 × 10^8 m / s and 2.0 × 10^8 m / s,…2022
- Two similar thin equi-convex lenses, of focal length f each, are kept coaxially in contact with each other such that the focal length of the…2019
- A convex lens 'A' of focal length 20 cm and a concave lens 'B' of focal length 5 cm are kept along the same axis with a distance 'd' between them. If…2021
- A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:2021
- In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the…2025
- An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of2018
NEET (UG) 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.