Calcium bicarbonate is a hard water salt. Its chemical
formula is
(a) CaC3
(b) Ca (HCO2)3
(c) Ca(HCO3)2
(d) CaO
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The Constitution (97th Amendment) Bill has been passed to reduced the size of the ministerial council to (a) 10% (b) 8% (c) 12% (d) 15%
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The first woman Deputy Governor of the Reserve Bank of India is (a) Vijayalakshmi Vishvanathan (b) Kiran Bedi (c) K. J. Udeshi (d) None of these
Which of the following statements is true ? (1) The speed of light in a vacuum depends upon the wavelength (2) The speed of light in a vacuum depends upon the frequency (3) The speed of light depends on wavelength, and not on frequency (4) The speed of light is independent of frequency and wavelength
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An object is moving at a steady speed ?v? along a circular path of radius ?r?. The angular acceleration of the object will be (a) vr (b) v/r (c) zero (d) v2/r