Total reflecting prism is used for

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Deviating a ray of light through

Obtaining an indented image without producing deviation in the path.

All of these

answer is D.

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Detailed Solution

Concept: Prisms, as we all know, are translucent objects that allow light rays to travel through them. In class 10, you've previously done experiments with prisms. The majority of prisms have a triangle base, and with the aid of a prism, we may see light reflection, refraction, and dispersion.
Total reflection occurs when a light ray passes from one medium to another and is entirely reflected back to the first medium without suffering refraction. The entire reflecting prism is constructed using two reflecting surfaces and one non-reflective surface (base). The angle formed by the two reflecting surfaces is and the angle formed by the opposite reflecting surface is.
In front of the prism, the inverted object is positioned. The prism allows light rays from an object that are parallel to the prism's base to pass through. Each ray of light is refracted twice at the two reflecting surfaces and reflected once at the prism's base. The constructed image of the object will then emerge from the emerging beam of light
Hence, option 4 is correct.

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