01 A convex lens forms a real, inverted image of an object placed…

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02 During sunrise or sunset, why does the Sun’s disc appear flattened when…

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03 The speed of a light ray changes from 3 x 10 m/s…

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04 Which phenomenon best explains why the sky appears blue during daytime?

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05 Why do stars appear to twinkle when observed from the Earth?

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06 Why do the seven colors of sunlight emerge separately after passing through…

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07 A pencil appears bent when partially submerged in water. Which scenario best…

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08 A student measures the absolute refractive index of water as 1.33. What…

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09 A ray parallel to the principal axis strikes a concave mirror. After…

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10 A diamond has an absolute refractive index of 2.42. If the speed…

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