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Units & Dimensi...

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  • Question 1
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    The pairs of physical quantities that have the same dimensions are

  • Question 2
    1 / -0

    The respective number of significant figures for the numbers 23.023, 0.0003 and 2.1 × 10–3 are

  • Question 3
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    Let [ε0] denote the dimensional formula of the permittivity of the vaccum, and [μ0] that of the permeability of the vacuum. If M = mass, L = length, T = time and I = electric current :

    [JEE-1998' 2/200]

  • Question 4
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    A quantity X is given by ε0L . where ε0 is the permittivity of free space, L is length, ΔV is potential difference and Δt is time interval. The dimensional formula for X is the same as that of

    [JEE Sc.2000'3/105]

  • Question 5
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    Pressure depends on distance as, P = , where α, β are constants, z is distance, k is Boltzmann's constant and q is temperature. The dimension of β are  

    [JEE-2004s '3/84]

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