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Units and Measu...

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  • Question 1
    4 / -1

    A thin copper wire of length l metre increases in length by 2% when heated through 10°C. What is the percentage increase in area when a square copper sheet of length l metre is heated through 10°C ?

  • Question 2
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  • Question 3
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    The period of oscillation of a simple pendulum in the experiment is recorded as 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s respectively. The average absolute error is

  • Question 4
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    If L = 2.331 cm, B = 2.1 cm, then L + B =

  • Question 5
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    The number of significant figures in all the given numbers 25.12,2009, 4.156 and 1.217 × 10–4 is

  • Question 6
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    If the acceleration due to gravity is 10 ms–2 and the units of length and time are changed in kilometer and hour respectively, the numerical value of the acceleration is

  • Question 7
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    Select the pair whose dimensions are same

  • Question 8
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  • Question 9
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    The dimensions of calorie are

  • Question 10
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    If C and R represent capacitance and resistance respectively, then the dimensions of RC are

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