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Refraction of Light at Plane Surfaces — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsRefraction of Light at Plane Surfaces3 Marks
Question
An object placed in one medium when seen from the other medium, appears to be vertically shifted. Name two factors on which the magnitude of shift depends and state how does it depend on them.
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Answer

The factors on which the magnitude of shift depends are:
(a) The refractive index of the medium,
(b) The thickness of the denser medium and
(c) The colour (or wavelength) of incident light.
The shift increase with the increase in the refractive index of medium. It also increases with the increase in thickness of denser medium but the shift decreases with the increases in the wavelength of light used.

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