Page 13 - 10-phy-12 Geometrical Optics

Extended 1. If a ray box is not available what alternative method can be used to find
Activities the critical angle?
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2. Find the refractive index of glass with the help of the same apparatus by
applying Snell's Law.
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3. Obtain a light spectrum using a ray box and a prism.
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BRAIN TEASER
Why a fish deep in water is able to see the fisherman standing at the river bank?

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