1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
A thin equi-convex lens is made of glass of refractive index 1.5 and its focal length is 0.2 m. If it acts as a concave lens of focal length 0.5 cm when dipped in a liquid, the refractive index of the liquid is
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
A spherical lens of power $$-$$4D is placed at a distance of 15 cm from another spherical lens of power 5 D. A beam of parallel light falls on the first spherical lens. The final image formed is
Questions Asked from Ray Optics (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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