MCQ
Match List $I$ with List $II$ :

List $I$ (Physical Quantity) List $II$ (Dimensional Formula)
$(A)$ Pressure gradient $(I)$ $\left[ M ^0 L ^2 T ^{-2}\right]$
$(B)$ Energy density $(II)$ $\left[ M ^1 L ^{-1} T ^{-2}\right]$
$(C)$ Electric Field $(III)$ $\left[ M ^1 L ^{-2} T ^{-2}\right]$
$(D)$ Latent heat $(IV)$ $\left[ M ^1 L ^1 T ^{-3} A ^{-1}\right]$

Choose the correct answer from the options given below:

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

Answer

Correct option: C.
$(A)-(III), (B)-(II), (C)-(IV), (D)-(I)$
c
Pressure gradient$=\frac{ dp }{ dx }=\frac{\left[ ML ^{-1} T ^{-2}\right]}{[ L ]}$

$=\left[ M ^1 L ^{-2} T ^{-2}\right]$

Energy density $=\frac{\text { energy }}{\text { volume }}=\frac{\left[ ML ^2 T ^{-2}\right]}{\left[ L ^3\right]}$

$=\left[ M ^1 L ^{-1} T ^{-2}\right]$

$\text { Electric field }=\frac{\text { Force }}{\text { ch arge }}=\frac{\left\lfloor MLT ^{-2}\right\rfloor}{[ A . T ]}$

$=\left[ M ^1 L ^1 T ^{-3} A ^{-1}\right]$

$\text { Latent heat }=\frac{\text { heat }}{\text { mass }}=\frac{\left[ ML ^2 T ^{-2}\right]}{[ M ]}$

$=\left[ M ^0 L ^2 T ^{-2}\right]$

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