MCQ
Maxwell’s equations describe the fundamental laws of
- AElectricity only
- BMagnetism only
- CMechanics only
- ✓Both $(a)$ and $(b)$
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Reason : The magnetisation does not depend on temperature.

$I$. All isotopes of an element have the same number of neutrons.
$II$. Only one isotope of an element can be stable and non-radioactive.
$III$. All elements have isotopes.
$IV$. All isotopes of carbon can form chemical compounds with oxygen-$16$.
Choose the correct option regarding an isotope.

