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Q. The device used to convert solar energy into electricity is
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Q. A doppler effect occurs when a source of sound moves
Q. Which of the following devices can be used to detect radiant heat ?
Q. An iron needle floats on the surface of water. What is the reason for this phenomenon?
Q. The dimensional formula ML–1T–2 corresponds to
Q. Scalding with steam is more severe than scalding with boiling water because
Q. Secondary winding of an auto transformer is also called ?
Q. The material that can be permanently deformed by heat and pressure is called a
Q. The least penetrating power ray is
Q. What is the other name of Galileo's law of falling bodies?
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