Question

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Answer 1

Answer:

1. The Jaipur observatory in Rajasthan, which contains the Jantar Mantar instruments, is the largest and best preserved of the ancient Big Observatories. The Samrat Yantra (translation: Supreme Instrument) is the World's Largest Sundial.

2. Because a convex lens concentrates the light rays that are incident on it, it is called a converging lens. The bending of rays is maximal at the top and bottom of the lens.

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