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Units and Measu...

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  • Question 1
    1 / -0

    The mass of a box measured by a grocer's balance is 2.3 kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. The total mass of the box is:

  • Question 2
    1 / -0

    The numbers $$2.745$$ and $$2.735$$ on rounding off to $$3$$ significant figures will give:

  • Question 3
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    A cube has a side of length 1.2 x $$10^{-2}$$. Its volume upto correct significant figures is

  • Question 4
    1 / -0

    Match the Column I with Column II

    Column I
    (Units)    		Column II
    (Dimensional formulae)
    (A)Pa s(p)$$[M^0L^2T^{-2}K^{-1}]$$
    (B)N m K$$^{-1}$$(q)
    		$$[MLT^{-3}K^{-1}]$$
    (C)J kg$$^{-1}$$ K$$^{-1}$$(r)$$[ML^{-1}T^{-1}]$$
    (D)W m$$^{-1}$$ K$$^{-1}$$(s)$$[ML^2T^{-2}K^{-1}]$$

  • Question 5
    1 / -0

    The radius of a sphere is 1.41 cm. Its volume to an appropriate number of significant figures is then

  • Question 6
    1 / -0

    If E, m, l and G denote energy, mass, angular momentum and gravitational constant respectively, then the quantity $$\displaystyle (\frac {El^2}{m^5G^2})$$ has the dimensions of then

  • Question 7
    1 / -0

    Which of the following pairs of physical quantities have same dimensions?

  • Question 8
    1 / -0

    The number of significant figure In the numbers $$4.8000 \times 10^4$$ and $$48000.50 $$ are respectively then

  • Question 9
    1 / -0

    The numbers 3.845 and 3.835 on rounding off to 3 significant figures will give then

  • Question 10
    1 / -0

    The dimensions of Planck's constant are the same as that of the

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