MCQ
What is the $\ce{C.G.S.}$ unit of charge?
- ✓Stat Coulomb
- BCoulomb
- CEMU
- DPascal
The $\ce{C.G.S}$. unit of charge is Stat Coulomb or $\ce{ESU}$ but in the $\ce{SI}$ system the unit is Coulomb. $\ce{EMU}$ is another unit of charge in the SI system. Pascal is the unit of pressure.
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The following figure represents two biconvex lenses $L_1$ and $L_2$ having focal length $10 \mathrm{~cm}$ and $15 \mathrm{~cm}$ respectively. The distance between $\mathrm{L}_1 \& \mathrm{~L}_2$ is :