Ray Optics and Optical Instruments

Bihar Board Class 12 · Physics · 73 past questions

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1. Q8 2025 Set D

   Image formed by convex mirror is always

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2. Q9 2025 Set D

   If the critical angle for total internal reflection from any medium to vacuum is $30^\circ$, then the…

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3. Q10 2025 Set D

   If two converging lenses of equal focal length $f$ are kept in contact, then the focal length of the…

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4. Q11 2025 Set D

   Power of a convex lens is 2 dioptre. Its focal length will be

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5. Q12 2025 Set D

   Which of the following is used to reduce chromatic aberration in lenses?

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6. Q13 2025 Set D2018

   A convex lens is dipped in a liquid, whose refractive index is equal to the refractive index of the material…

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7. Q14 2025 Set D

   A person uses spectacles (lens) of +2D power. His defect of vision is

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