Question detail
For Properties of electromagnetic waves, a student is working with a loudspeaker and microphone demonstration. Which option best uses compressions, rarefactions and detected vibrations to explain why wavelength changes when wave speed changes at a boundary but frequency remains the same.?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Electromagnetic waves
Question
- A. frequency: ray-box boundary observation in a loudspeaker and microphone demonstration
- B. frequency: a generic statement that ignores compressions, rarefactions and detected vibrations
- C. frequency: a boundary mistake that confuses sound versus ultrasound
- D. frequency: a different Unit 4.6 idea from outside Properties of electromagnetic waves
Answer
The correct answer is frequency: ray-box boundary observation in a loudspeaker and microphone demonstration.
Explanation
frequency: ray-box boundary observation in a loudspeaker and microphone demonstration is correct because it uses the named evidence from a loudspeaker and microphone demonstration and stays anchored to Properties of electromagnetic waves. It avoids the common boundary error of sound versus ultrasound while keeping the learning objective visible.
Common mistake
Properties of electromagnetic waves common mistake 1
Giving a vague answer instead of directly addressing: Explain why wavelength changes when wave speed changes at a boundary but frequency remains the same..
Answer by clearly explaining how to explain why wavelength changes when wave speed changes at a boundary but frequency remains the same..
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