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# Assertion (A) : The air pressure in the car tyre increases during driving. Reasons (R) : Temperature of air in the tyre increases due to friction of tyre with road. Increase in temperature results in an increase in pressure according to Charle's law .

$\begin {array} {1 1} (a)\;(A) \: is \: flase,\: (R) \: is\: true \\ (b)\;(A)\: is\: true, \: (R)\; is\: false \\ (c)\;Both \:(A)\: and\: (R)\: are\: true,\: but\: (R)\: is \: not \: the\: correct\: explanation\: of\: (A) \\ (d)\;Both \: (A) \: and\: (R)\: are\: true,\: but\: (R)\: is\: the\: correct \: explanation\: of \: (A) \end {array}$

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(4) Both (A) and (R) are true, but (R) is the correct explanation of (A)
answered Nov 7, 2013 by