Physics
The below diagram shows a triangular prism used for tracing the path of ray AB due to the refraction through the prism. Observe the diagram and answer the following:
(a) State the correct eye position from the points P, Q, R and S to see the images of the points A and B in the same line through the prism.
(b) If the ray, after entering the prism, suffers total internal reflection, then which would be the appropriate position out of P, Q, R, and S to see the image due to TIR?
Refraction Plane Surfaces
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Answer
(a) Point Q
(b) S, R
Both points S and R are possible because the bending of light depends on several factors such as the medium’s refractive index, the angle of incidence, and the wavelength of light.
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