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1.Units, Dimensions and Measurement
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$\left(\frac{ B ^{2}}{\mu_{0}}\right)$ નું પરિમાણ ......... થશે. $\left(\mu_{0}:\right.$ શૂન્યાવકાશની પારગમ્યતા અને $B$ : ચુંબકીય ક્ષેત્ર )
A$\left[ ML ^{2} T ^{-2}\right]$
B$\left[ ML T ^{-2}\right]$
C$\left[ ML ^{-1} T ^{-2}\right]$
D$\left[ ML ^{2} T ^{-2} A ^{-1}\right]$
(JEE MAIN-2022)
Solution
$u =\frac{ B ^{2}}{2 \mu_{0}}$
$u \rightarrow$ Energy per unit volume
$\left[\frac{ B ^{2}}{\mu_{0}}\right]=[ u ]=\frac{\left[ ML ^{2} T ^{-2}\right]}{\left[ L ^{3}\right]}=\left[ ML ^{-1} T ^{-2}\right]$
$u \rightarrow$ Energy per unit volume
$\left[\frac{ B ^{2}}{\mu_{0}}\right]=[ u ]=\frac{\left[ ML ^{2} T ^{-2}\right]}{\left[ L ^{3}\right]}=\left[ ML ^{-1} T ^{-2}\right]$
Standard 11
Physics
