The dimensional formula of the coefficient of thermal conductivity is :

1.  $\left[{\mathrm{M}}^{1}{\mathrm{L}}^{1}{\mathrm{T}}^{-3}{\mathrm{K}}^{-1}\right]$

2.  $\left[{\mathrm{M}}^{3}{\mathrm{L}}^{-1}{\mathrm{T}}^{-3}\mathrm{K}\right]$

3.  $\left[{\mathrm{M}}^{1}{\mathrm{L}}^{-3}{\mathrm{T}}^{-1}{\mathrm{K}}^{-1}\right]$

4.  $\left[{\mathrm{M}}^{1}{\mathrm{L}}^{1}{\mathrm{T}}^{-3}\mathrm{K}\right]$

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Dimensions
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[Only for Dropper batch]

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Dimensions
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What are the dimensions of latent heat?

(1) $M{L}^{2}{T}^{-2}$

(2) $M{L}^{-2}{T}^{-2}$

(3) ${M}^{0}L{T}^{-2}$

(4) ${M}^{0}{L}^{2}{T}^{-2}$

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Dimensions
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[Only for dropper batch]

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Dimensions
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The dimensional formula of pressure is

1. $\left[{\mathrm{MLT}}^{-2}\right]$

2. $\left[{\mathrm{ML}}^{-1}{\mathrm{T}}^{2}\right]$

3. $\left[{\mathrm{ML}}^{-1}{\mathrm{T}}^{-2}\right]$

4. $\left[{\mathrm{MLT}}^{2}\right]$

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Dimensions
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Light year is a unit of

(1) Time

(2) Mass

(3) Distance

(4) Energy

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The magnitude of any physical quantity :

(1) Depends on the method of measurement

(2) Does not depend on the method of measurement

(3) Is more in SI system than in CGS system

(4) Directly proportional to the fundamental units of mass, length and time

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Which of the following is not equal to watt ?

(1) Joule/second

(2) Ampere $×$ volt

(3) (Ampere)2 $×$ ohm

(4) Ampere/volt

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Newton–second is the unit of

(1) Velocity

(2) Angular momentum

(3) Momentum

(4) Energy

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Which of the following is not represented in correct unit

(1) $\frac{\text{Stress}}{\text{Strain}}=N\text{​}/\text{​}{m}^{2}$

(2) Surface tension = $N\text{​}/\text{​}m$

(3) Energy $=kg\text{​-​}m\text{​}/\text{​}\mathrm{sec}$

(4) Pressure $=N\text{​}/\text{​}{m}^{2}$

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Dimensions