Important questions for class 11 Physics Chapter 1 Units and Measurements

important questions class 11 physics chapter 1 units measurements 1

A body initially at

80^{\circ}

C cools to

64^{\circ}

C in 5 minutes and to

52^{\circ}

C in 10 minutes. The temperature of the body after 15 minutes will be

{42.7}^{\circ}

35^{\circ}

47^{\circ}

40^{\circ}

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Chapter 1 - Units and Measurements