Physics · 2020
NEET 2020 · 13 September · Code E1 · Q168
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:
Assume that light of wavelength $\displaystyle 600$ nm is coming from a star. The limit of resolution of telescope whose objective has a diameter of $\displaystyle 2$ m is :
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 3.66 \times 10^{-7}$ rad
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
- 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
- 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
- A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is:2022
- A ray of monochromatic light is passing through an equilateral prism (ABC) as shown in the figure. The refracted ray (QR) is parallel to its base…2026
- Consider three media P, Q and R with refractive indices 1, 1.25, and 1.5, respectively. The medium Q having a thickness of 5 cm is placed between…2026
- A microscope has an objective of focal length 2 cm, eyepiece of focal length 4 cm and the tube length of 40 cm. If the distance of distinct vision of…2025
- Two thin lenses are of same focal lengths (f), but one is convex and the other one is concave. When they are placed in contact with each other, the…2023
NEET (UG) 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.