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Units and Dimensions question bank (Physics)

Practice 732 free Engineer & Medical Physics - Units and Dimensions questions with answers and step-by-step solutions.

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Q1.

Consider the equation $H = \dfrac{x^p \epsilon^q E^r}{t^s}$, where $H=$ magnetic field; $E=$ electric field, $\epsilon=$ permittivity, $x=$ distance, $t=$ time. The values of $p, q, r$ and $s$ respectively are:

(A)
$1, 1, 1, 1$
(B)
$-1, 1, 2, 1$
(C)
$1, -1, -2, 1$
(D)
$-1, -2, -2, 1$
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Q2.

Match List - I with List - II.

List - IList - II
A. Boltzmann constantI. $[M^{-1}L^3T^{-2}]$
B. Stefan's constantII. $[ML^2T^{-1}]$
C. Planck's constantIII. $[ML^2T^{-2}K^{-1}]$
D. Gravitational constantIV. $[ML^0T^{-3}K^{-4}]$
Choose the correct answer from the options given below :

(A)
A-I, B-II, C-III, D-IV
(B)
A-IV, B-III, C-II, D-I
(C)
A-III, B-IV, C-II, D-I
(D)
A-II, B-I, C-IV, D-III
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