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Units, Dimensio...

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  • Question 1
    1 / -0

    Which of the following quantities is unitless as well as dimensionless?

  • Question 2
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    Which of the following magnitudes is expressed most accurately?

  • Question 3
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    In a screw gauge, if the zero mark on the head scale is below the index line of the pitch scale, then the error is

  • Question 4
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    The length, breadth and thickness of a block are given as l = 12 cm, b = 6 cm and t = 2.45 cm, respectively. The volume of the block, according to the idea of significant figures, should be

  • Question 5
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    If a screw gauge moves 1 mm in two rotations, then the pitch of the screw gauge is

  • Question 6
    1 / -0

    How many significant figures are there in 0.000040009?

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