1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 $$\times$$ 108 m/s and 2.0 $$\times$$ 108 m/s, respectively. The critical angle for a ray of light for these two media is
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Find the value of the angle of emergence from the prism. Refractive index of the glass is $$\sqrt 3 $$
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
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 a parallel beam of light falling on 'A' leaves 'B' as a parallel beam, then the distance 'd' in cm will be :
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since :
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