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Q. Sound is heard over longer distances on rainy days as
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Q. The operation of the electric generator and motor is based on the interaction between
Q. A doppler effect occurs when a source of sound moves
Q. Which one of the following received Nobel Prize twice for the same subject?
Q. If the spinning speed of the earth is increased then the weight of body at the equator will be
Q. Tee study of science dealing with the phenomena at at very low temperatures is known as
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