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A hypothetical electromagnetic wave is pictured here.
Q. A standing wave in a string 42 cm long has a total of six nodes (including those at the ends). Wavelength of the standing wave is
  • a)
    7.0 cm
  • b)
    16.8 cm
  • c)
    10.5 cm
  • d)
    5.25 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A hypothetical electromagnetic wave is pictured here.Q.A standing wave...
If there are 6 nodes, then there are 5 segments between nodes, and the wavelength of the underlying wave is 2 of those (because they look similar when they’re moving but if you freeze-frame, every second one is the opposite direction), so I make it 2*42/5 = 16.8 cm.
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A hypothetical electromagnetic wave is pictured here.Q.A standing wave in a string 42 cm long has a total of six nodes (including those at the ends). Wavelength of the standing wave isa)7.0 cmb)16.8 cmc)10.5 cmd)5.25 cmCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A hypothetical electromagnetic wave is pictured here.Q.A standing wave in a string 42 cm long has a total of six nodes (including those at the ends). Wavelength of the standing wave isa)7.0 cmb)16.8 cmc)10.5 cmd)5.25 cmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hypothetical electromagnetic wave is pictured here.Q.A standing wave in a string 42 cm long has a total of six nodes (including those at the ends). Wavelength of the standing wave isa)7.0 cmb)16.8 cmc)10.5 cmd)5.25 cmCorrect answer is option 'B'. Can you explain this answer?.
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