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प्रश्न
State the speed of light in (a) air, (b) water, and (c) glass
उत्तर
Speed of light in
Air - 3 × 108 ms-1 or 300000 km/h
Water - 2.25 × 108 ms-1
Glass - 2 × 108 ms-1
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संबंधित प्रश्न
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Refer to fig
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(iv) Write three characteristics of the image.
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