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What is piezoelectricity
Piezoelectricity provides us a means of converting electrical energy to presume new geometric positions and mechanical dimensions of the substance are altered. This phenomenon is known as electrostriction. Reverse effect i.e. production of polarization by application of mechanical stresses can occur only if lattice has no center of symmetry, this phenomenon is termed as piezoelectricity. Illustrations- Rochelle salt, Quartz, Barium titante.
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Molecular Formula Molecular formula of a substance provides the actual number of atoms that present in one molecule of the substance. Molecular formula = n * Empirical fo
Why alcoholic acidity of maids is expressed as H2SO4?
what techniques can you use to separate solute from liquid
CLARK'S METHOD OR SOAP TITRATION METHOD: This method depends upon the fact that when soluble soap is added to hard water, constituent of hard water. Ca, Mg and other heavy metals
From the following which group of elements easily forms cation: (1) F, CL, Br (2) Li, Na, K (3) O, S, Se, (4)
How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
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Mention the major reason for the anomalous behaviour of lithium in Group of the periodic table. Why is the third ionization energy of manganese (At. No. =25) unexpectedly high?
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