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A light ray enters a prism through the side PR. PQR is a cross section of the prism. The emergent ray lies along the boundary OQ. ∠P = 90° and PQ = PR. The ray diagram has been given.iv. What is the speed of light in the prism? (Speed of light in air is 3×108 m/s)[1 mark] |
Answer» ![]() A light ray enters a prism through the side PR. PQR is a cross section of the prism. The emergent ray lies along the boundary OQ. ∠P = 90° and PQ = PR. The ray diagram has been given. iv. What is the speed of light in the prism? (Speed of light in air is 3×108 m/s) [1 mark] |
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