MCQ
The attenuation in optical fibre is mainly due to
- AAbsorption
- BScattering
- CNeither absorption nor scattering
- ✓Both $(a)$ and $(b)$
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Statement $I$ : Electric potential is constant within and at the surface of each conductor.
Statement $II$ : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.
In the light of the above statements, choose the most appropriate answer from the options give below.


Reason : Soft iron has high magnetic permeability and cannot be easily magnetized or demagnetized.