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Units and Measu...

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  • Question 1
    4 / -1

    If the error in measuring the radius of the sphere is 2% and that in measuring its mass is 3%, then the error in measuring the density of material of the sphere is

  • Question 2
    4 / -1

    Which of the following is the most precise instrument for measuring length?

  • Question 3
    4 / -1

    Which of the following time measuring devices is most precise?

  • Question 4
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    Which of the following statements is incorrect?

  • Question 5
    4 / -1

    Which of the following instruments has minimum least count?

  • Question 6
    4 / -1

    The vernier scale of a travelling microscope has 50 divisions which coincide with 49 main scale divisions. If each main scale division is 0.5 mm, then the least count of the microscope is

  • Question 7
    4 / -1

    In an experiment, the period of oscillation of a simple pendulum was observed to be 2.63s, 2.56s, 2.42s, 2.71s and 2.80s. The mean absolute error is

  • Question 8
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    If  and ΔA, ΔB, ΔC, and ΔD are their absolute errors in A, B, C and D respectively. The relative error in Z is then

  • Question 9
    4 / -1

    The temperatures of two bodies measured by a thermometer are t1 = 20 °C ± 0.5 °C and t2 = 50 °C ± 0.5 °C. The temperature difference and the error there is

  • Question 10
    4 / -1

    Two resistors of resistances R1 = (300 ± 3)Ω and R2 = (500 ± 4)Ω are connected in series. The equivalent resistance of the series combination is

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