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Q. Sound cannot pass through
Sound cannot travel through a perfect vacuum. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibration to work in.
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Q. X - rays are used for the study of crystal structure because
Q. In which form is the supplied heat energy stored during change in temperature of substance?
Q. M L2 T−2 is the dimensional formula for
Q. Intensity of sound at a point is __________ its distance from the source.
Q. A dynamo is used to convert
Q. Pure water freezes at what temperature?
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Q. Recently developed technique for monitoring foetal growth is
Q. The information of brilliant colors in a thin soap film is a consequence of the phenomena of
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