Wave Intensity
Intensity of wave proportional to square of:
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About This Question
- Subject
- physics
- Chapter
- oscillations and waves
- Topic
- wave intensity
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Amplitude
Intensity (I) is the power delivered by a wave per unit area. For a harmonic wave: I=21ρvω2A2 where:
- ρ: density of the medium
- v: wave speed
- ω: angular frequency (2πf)
- A: amplitude The most important takeaway is I∝A2 and I∝f2. This scale relationship is fundamental to energy calculations for sound, light, and mechanical vibrations.
This medium difficulty physics question is from the chapter oscillations and waves, covering the topic of wave intensity. It appeared in the 2025 exam.
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