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1.Units, Dimensions and Measurement
easy
જો $\theta _1= 25.5 \pm 0.1\,^oC$ અને ${\theta _2} = 35.3 \pm 0.1{{\mkern 1mu} ^o}C$ હોય, તો ${\theta _1}\, - \,{\theta _2}$ શોધો.
Option A
Option B
Option C
Option D
Solution
$\begin{aligned}
\mathrm{Z}-\Delta \mathrm{Z} =(\mathrm{A} \pm \Delta \mathrm{A})-(\mathrm{B} \pm \Delta \mathrm{B}) \\
=(\mathrm{A}-\mathrm{B}) \pm(\Delta \mathrm{A} \mp \Delta \mathrm{B}) \\
=(25.5-35.3) \pm(0.1+0.1) \\
=(-9.8 \pm 0.2)^{\circ} \mathrm{C}
\end{aligned}$
Standard 11
Physics
