A glass sphere of radius 5 cm has a small bubble 2 cm from its centre. The bubble is viewed along a diameter of the sphere, from the side on which it lies. How far from the surface will it appear? Refractive index of glass is 1.5.
Answers
Answer:
The bubble will be seen as far as it actually is. That is (0. 5 - 0.02) = 0.48m from the surface of the sphere.
Explanation:
When the light enters a rarer medium, it tries to bend away from the normal drawn to the surface at that point, except if it is incident at 90 degrees to the surface. In this case it does not bend at all and follows the same straight path.
For a small bubble in the question, it is being observed along the diameter, so the light entering into the eye must be perpendicular to the surface and hence will not bend. The perception of depth changes if the light bends after crossing the surface and gives a false impression of location of objects. Hence we will see it at the same location as if there was no sphere.
Answer:
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