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Q. The speed of sound travel fastest through
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids.
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Q. What kind of cell is the mobile phone battery when it is being charged?
Q. What is the measure of the response of the ear to the sound known as?
Q. When an electric bulb breaks, there is an explosive sound. That is due to
Q. In a refrigerator what produces the cooling ?
Q. Mica is used in electrical appliances such as electric iron because mica is
Q. Most part of the Cosmic rays that impinge on earth‘s atmosphere are __?
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