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JEE MAIN 2021
31.08.21_S2
Question
Which of the following equations is dimensionally incorrect? Where $\mathrm{t}=$ time, $\mathrm{h}=$ height, $\mathrm{s}=$ surface tension, $\theta=$ angle, $\rho=$ density, $\mathrm{a}, \mathrm{r}=$ radius, $\mathrm{g}=$ acceleration due to gravity, $\mathrm{v}=$ volume, $\mathrm{p}=$ pressure, $\mathrm{W}=$ work done, $\Gamma=$ torque, $\in=$ permittivity $\mathrm{E}=$ electric field $\mathrm{J}=$ current density, $\mathrm{L}=$ length.
Select the correct option:
A
$v=\frac{\pi p a^4}{8 \eta L}$
B
$h=\frac{2 s \cos \theta}{\rho r g}$
C
$\mathrm{J}=\epsilon \frac{\partial \mathrm{E}}{\partial \mathrm{t}}$
D
$\mathrm{W}=\Gamma \theta$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Question Tags
JEE Main
Physics
Easy
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