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Q. A wave under goes reflection from a rigid boundary. One of its characteristic parameters that changes is
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Q. Minimum number of unequal vectors which can give zero resultant are
Q. It is easier to roll a stone up a sloping road than to lift it vertical upwards because
Q. Small bubbles are perfectly spherical as of
Q. Which one of the following is the purest form of water?
Q. When water is heated form 0°C to 10° C. Its volume
Q. The unit of Planck's constant is
Q. Out of the following pairs, which one does not have identical dimension?
Q. Skating on ice is possible because
Q. Optical fibre works on which of the following principle of light?
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