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Q. The material used in the fabrication of a transistor is
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Q. The instrument used to regulate temperature to particular degree is called
Q. Which ecological pyramid can never be inverted
Q. Conservation of energy refers to the fact that
Q. In the visible spectrum, the colour having the shortest wavelength is
Q. The SI unit of resistance is:
Q. Which of the following phenomenon is responsible for the echo of sound wave
Q. The fundamental scientific principle in the operation of battery is
Q. If a sound travels from air to water, the quantity that remain unchanged is
Q. A galvanometer can be converted into a voltmeter by connecting with it a
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