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A pulse of electromagnetic radiation propagates through a normally dispersive medium. As it propagates, the pulse gets broadened. This is because
  • a)
    the medium amplifies the pulse.
  • b)
    the higher frequency components in the pulse travel faster than the lower frequency ones
  • c)
    the lower frequency components in the pulse travel faster than the higher frequency ones
  • d)
    components of all frequencies travel at the same velocity.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A pulse of electromagnetic radiation propagates through a normally dis...
We know for normally dispersive medium refractive index ∝ frequency (f) and velocity in a medium 

So the lower frequency components in the pulse travel faster than the higher frequency ones.
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Most Upvoted Answer
A pulse of electromagnetic radiation propagates through a normally dis...
We know for normally dispersive medium refractive index ∝ frequency (f) and velocity in a medium 

So the lower frequency components in the pulse travel faster than the higher frequency ones.
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A pulse of electromagnetic radiation propagates through a normally dispersive medium. As it propagates, the pulse gets broadened. This is becausea)the medium amplifies the pulse.b)the higher frequency components in the pulse travel faster than the lower frequency onesc)the lower frequency components in the pulse travel faster than the higher frequency onesd)components of all frequencies travel at the same velocity.Correct answer is option 'C'. Can you explain this answer?
Question Description
A pulse of electromagnetic radiation propagates through a normally dispersive medium. As it propagates, the pulse gets broadened. This is becausea)the medium amplifies the pulse.b)the higher frequency components in the pulse travel faster than the lower frequency onesc)the lower frequency components in the pulse travel faster than the higher frequency onesd)components of all frequencies travel at the same velocity.Correct answer is option 'C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A pulse of electromagnetic radiation propagates through a normally dispersive medium. As it propagates, the pulse gets broadened. This is becausea)the medium amplifies the pulse.b)the higher frequency components in the pulse travel faster than the lower frequency onesc)the lower frequency components in the pulse travel faster than the higher frequency onesd)components of all frequencies travel at the same velocity.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A pulse of electromagnetic radiation propagates through a normally dispersive medium. As it propagates, the pulse gets broadened. This is becausea)the medium amplifies the pulse.b)the higher frequency components in the pulse travel faster than the lower frequency onesc)the lower frequency components in the pulse travel faster than the higher frequency onesd)components of all frequencies travel at the same velocity.Correct answer is option 'C'. Can you explain this answer?.
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