Ray Optics and Optical Instruments

Bihar Board Class 12 · Physics · 73 past questions

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1. Q2 2026 Set A2023 Set F2019

   Differentiate between primary and secondary rainbow.

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2. Q23 2023 Set F

   The radius of curvature of each surface of a biconvex lens is 20 cm and the refractive index of the material…

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3. Q24 2023 Set F

   The dispersive power of a prism depends on

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4. Q25 2023 Set F

   A convex lens of focal length 40 cm and a concave lens of focal length 20 cm are in contact. The power of…

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5. Q27 2023 Set F

   The coefficient of reflection for total internal reflection will be

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6. Q28 2023 Set F

   The final image formed by a terrestrial telescope is

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7. Q29 2023 Set F

   The critical angle for total internal reflection of a ray from any medium to vacuum is 30°. Then velocity of…

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