MCQ
Metallic solids are always opaque because
- ASolids effect the incident light
- ✓Incident light is readily absorbed by the free electron in a metal
- CIncident light is scattered by solid molecules
- DEnergy band traps the incident light
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The magnitude of the magnetic field $(B)$ due to the loop $ABCD$ at the origin $(O)$ is :
$x\left( t \right) = A\,\sin \,\left( {at + \delta } \right)$
$y\left( t \right) = B\,\sin \,\left( {bt} \right)$
Identify the correct match below

