Units and Measurements

1. A.
   A-I, B-II,C-III, D-IV
2. B.
   A-IV, B-III,C-II, D-I
3. C.
   A-III, B-IV,C-II, D-I
4. D.
   A-II, B-I,C-IV, D-III

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1. A.
   1
2. B.
   2
3. C.
   6
4. D.
   8

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1. A.
   0.002
2. B.
   0.05
3. C.
   0.02
4. D.
   0.005

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1. A.
   0.07 cm negative zero error
2. B.
   0.7 cm negative zero error
3. C.
   0.07 cm positive zero error
4. D.
   0.7 cm positive zero error

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1. A.
   5.045
2. B.
   5.055
3. C.
   5.450
4. D.
   5.550

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1. A.
   The dimensions of nt is [L]
2. B.
   The dimensions of $n$ is $\left\lbrack {LT}^{- 1} \right\rbrack$
3. C.
   The dimensions of $n/\lambda$ is $\lbrack T\rbrack$
4. D.
   The dimensions of $x$ is [L]

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1. A.
   $\left\lbrack M^{1}{\text{ }L}^{5/2}{\text{ }T}^{- 2} \right\rbrack$
2. B.
   $\left\lbrack M^{3/2}{\text{ }L}^{5/2}{\text{ }T}^{- 2} \right\rbrack$
3. C.
   $\left\lbrack M^{1}{\text{ }L}^{2}{\text{ }T}^{- 2} \right\rbrack$
4. D.
   $\left\lbrack M^{1}{\text{ }L}^{7/2}{\text{ }T}^{- 2} \right\rbrack$

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1. A.
   Planck's constant
2. B.
   Compressibility
3. C.
   Strain
4. D.
   Energy density

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1. A.
   $\left\lbrack {hTLM}^{- 2} \right\rbrack$
2. B.
   $\left\lbrack {hT}^{- 1}{LM}^{- 2} \right\rbrack$
3. C.
   $\left\lbrack {hTL}^{2}M^{- 2} \right\rbrack$
4. D.
   $\left\lbrack h^{- 1}{\text{ }T}^{- 1}{LM}^{- 2} \right\rbrack$

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1. A.
   A-IV,B-III,C-I,D-II
2. B.
   A-III,B-IV,C-II,D-I
3. C.
   A-I,B-III,C-IV,D-II
4. D.
   A-III,B-IV,C-I,D-II

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