Why gave we to put back the clock continually, when we travel round the world west-wards ?

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All elements with an atomic number greater than what number are unstable?

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Explain the Fluorescence ?

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Consider earth's equator is covered with a measuring tape touching the ground such both the ends touch each other. if the tape is lifted 1 meter from the ground, what would be the distance between two ends of tape?

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What is Colours of bodies ?

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Explain what affect does electricity have on soil?

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Explain interference?

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Explain what is the ray of light?

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In beta minus emission, the number of nucleons in the atom?

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How does the towel dry out hands ?

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What is physical significance of wave function? : quantum physics

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What is meant by energy spectrum of a black body? What do you infer from it? : quantum physics

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