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0. 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 Take the approximation sinθ ≡ θ and cosθ ≡ 1 where θ is angle and consider the rays close 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) (NTSE Andhra Pradesh, Stage-I, 2016-17)
Virtual and formed at a distance R
Real and formed at a distance R
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Take the approximation sinθ ≡ θ and cosθ ≡ 1 where θ is angle and consider the rays close to a diameter of the bubble. Use the following formula to solve the problem 
(see figure) 
R
R
R