Question

1. Why should the pins be fixed at least 4 to 6 cm apart?
2. Why are the incident and the emergent rays parallel to each other in case of refraction through a rectangular glass slab?
3. While tracing the path of ray of light through a glass slab, the angle of incidence is generally taken between 30 and 60. Explain why?
4. What should be the angle of incidence when refracted ray will not show any deviation?

Answer 1

Answer:

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Explanation:

1. Ans) To get more light. It will be more convenient to fixed others pins on incident ray are far apart