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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A point source of light O (behaving as a point object) is placed infront of a prism at a distance a from it. A screen is placed at a distance b from the source is prism. If the angle theta is very small

A point source of light O (behaving as a point object) is placed infront of a prism at a distance a from it. A screen is placed at a distance b from the source is prism. If the angle theta is very small

having the same thickness as the first one but In Young's experiment the upper slit is covered by a thin glass plate of refractive index 1.4 while the lower slit is covered by another glass plate