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1. Explain the shining of an air bubble in water. 2. A convex lens forms an image of the same size as the object at a distance of 30 cm from the lens. What is the distance of the object from the lens? [5 MARKS]

Answer»

1. Explain the shining of an air bubble in water.
2. A convex lens forms an image of the same size as the object at a distance of 30 cm from the lens. What is the distance of the object from the lens? [5 MARKS]



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