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P-1 Refraction of light — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Refraction of light3 Marks
Question
Observe the given figure and answer the following questions:
i. Name the process represented by the figure.
ii. State the two laws related to the process.
Image
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Answer

i. Refraction of light
ii. Laws of refraction:
a. Incident ray and refracted ray at the point of incidence N are on the opposite sides of the normal to the surface of the slab at that point i.e. CD , and the three, incident ray, refracted ray and the normal, are in the same plane.
b. For a given pair of media, here air and glass, the ratio of $\sin i$ to $\sin r$ is a constant. Here, $i$ is the angle of incidence and $r$ is the angle of refraction.

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