Ray Optics and Optical Instruments

Bihar Board Class 12 · Physics · 73 past questions

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1. Q63 2018

   Critical angle for light moving from medium I to medium II is $\theta$. The speed of light in medium I is v.…

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2. Q64 2018

   A magnifying glass is to be used at the fixed object distance of 1 inch. If it is to produce an erect image 5…

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3. Q67 2018

   A fish is at a depth of $\sqrt{7}$ cm and it can see only through a circular section of water surface. What… (with a figure)

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4. Q68 2018

   A small pin is fixed on a table and it is viewed from a distance of 50 cm from above. A glass slab of…

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