Physics
Kirchhoff's laws are applicable to

C. circuits only
C. circuits only
C. and A.C. circuits both
None of these

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Physics
Holography is a technique of

Recording a permanent, sharp two diimensional black and white or multicolour photograph
Recording a permanent three dimensional black and white photograph
Recording a permanent three dimensional photograph of a given single colour or a multicolour
Recording a permanent three dimensional multicolour photograph

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Physics
In a conductor

There is no conduction band
The valence band and the conduction band overlap each other
The forbidden energy gap is very narrow
The forbidden energy gap is very wide

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