# Light rays from a very small object immersed in water falls on the bubble of radius R. Assume that the object is very close to the surface of the bubble. Refractive Index of water is 4/3. Take the approximation sin   and cos  1, where is angle and consider the rays closer to a diameter of the bubble. Use the following formula to solve the problem = = (see figure) The image is … (from the center of the bubble) (a) virtual and formed at a distance 3 R/2 (b) virtual and formed at a distance 2 R/3 (c) virtual and formed at a distance 3 R/5 (d) real and formed at a distance 3 R/2

## Question ID - 101018 :- Light rays from a very small object immersed in water falls on the bubble of radius R. Assume that the object is very close to the surface of the bubble. Refractive Index of water is 4/3. Take the approximation sin   and cos  1, where is angle and consider the rays closer to a diameter of the bubble. Use the following formula to solve the problem = = (see figure) The image is … (from the center of the bubble) (a) virtual and formed at a distance 3 R/2 (b) virtual and formed at a distance 2 R/3 (c) virtual and formed at a distance 3 R/5 (d) real and formed at a distance 3 R/2

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real and formed at a distance 3 R/2

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In the following question there is a relationship exists between the words/letters/numbers given to the left of the proportionality (: :) sign.  The same relationship exists between the words/letters/numbers given to the right of the sign (: :) of which one is missing.  Find the missing one from the given alternatives.

 35 : 91 : : 189 : ? (a) 343 (b) 341 (c) 280 (d) 210 