Ray Optics and Optical Instruments

Bihar Board Class 12 · Physics · 73 past questions

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1. Q56 2019

   Equivalent focal length of two lenses in contact having power -15D and +5D will be

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2. Q58 2019

   A convex lens (n=1.5) is immersed in water (n=1.33), then it will behave as a

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3. Q60 2019

   Two thin convex lens of power +5 and +4 diopter and placed co-axially at a distance 10 cm. Find the focal…

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