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Physics - Questions and Answers Objective Questions
Physics - Questions and AnswersPage 59
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Answer is: AA scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge. On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force and weight.
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Answer is: CSince the Force and the duration of time for which it acted are same, the product of force and time will be the same for both. Since Forcetime gives change in momentum of a body, and they had 0 momentum initially, their final momenta will be same.
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Answer is: AA physical quantity is a property of a material or system that can be quantified by measurement.
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Answer is: DWhen length of capillary tube is insufficient then we would observe no rise on level of water because their will be no air pressure created enough to rise the water level.
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Answer is: CElectric current is the flow of electrons in a wire. In metals, the outer electrons of the atoms belong to a ?cloud? of delocalised electrons. They are no longer firmly held by a specific atom, but instead they can move freely through the lattice of positive metal ions
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Answer is: BThe amplitude is independent of other means it is not related to the other quantities.
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Answer is: A
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