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
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I have marked Option "a", that it will behave as a convergent lens. Please rectify me with reason.
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)
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
|dw:1333530089218:dw| it shud have gone straight if not for refraction