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Question

The focus in terms of a parabolic mirror is where:


  1. All the parallel incident rays meet

  2. All the parallel reflected rays meet

  3. All the parallel reflected rays appear to meet

  4. All the parallel incident rays appear to meet


Solution

The correct options are
B

All the parallel reflected rays meet


C

All the parallel reflected rays appear to meet


The focus for a parabolic mirror is defined as the point where all the parallel incident rays meet or appear to meet.

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