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Aadarsh

  • 4 years ago

A thin lens is made with a material having refractive index ("mu" = 1.5). Both the sides are convex. It is dipped in a water("mu" = 1.33). It will behave like: a)a convergent lens b)a divergent lens c) a rectangular slab d)a prism

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  1. Aadarsh
    • 4 years ago
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    I have marked Option "a", that it will behave as a convergent lens. Please rectify me with reason.

  2. salini
    • 4 years ago
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    i think a) is the right answer as anyway the light is going from a rarer to denser medium(from water/air to lens) so its principles remain same i found this with the hepl of the r.i value given spped of light in water is less slow than speed of light in lens(find this with ur intuition) so i can say that lens is more denser then the effect is gonna remain the same(converging factor) |dw:1333529710847:dw| as u can see somewhat in the diagram that is wat presumably happens inside a lens refraction thry both sides of lens so anyway light is now going from a denser to rarer media and it bends away from normal(NN') but u can see that water being denser tahn air will offer less converging power(theta angle being smaller so it may converge but some place after focus point

  3. salini
    • 4 years ago
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    |dw:1333530089218:dw| it shud have gone straight if not for refraction

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