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1) Sound of frequency below 20 Hz is called
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1) Sound of frequency below 20 Hz is called
No Explanation found. Add Explanation and get +2 points.
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2) On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
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3) Suitable impurities are added to a semiconductor depending on its use. This is done in order to
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4) Stars twinkle because
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5) It takes much longer to cook food in the hills than in the plains, because
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6) Moment of inertia is:
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7) Of the following natural phenomena, tell which one known in Sanskrit as 'deer's thirst'?
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8) Inside an aeroplane, flying at a high altitude,
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9) Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
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10) One thousand microns is equal to
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