Subjects
| Sections | |||
|---|---|---|---|
| What is a Wave? | 27 mins | 0 completed | Learn |
| The Mathematical Description of a Wave | 36 mins | 0 completed | Learn |
| Waves on a String | 24 mins | 0 completed | Learn |
| Wave Interference | 17 mins | 0 completed | Learn |
| Standing Waves | 24 mins | 0 completed | Learn |
| Sound Waves | 13 mins | 0 completed | Learn |
| Standing Sound Waves | 13 mins | 0 completed | Learn |
| Sound Intensity | 25 mins | 0 completed | Learn |
| The Doppler Effect | 17 mins | 0 completed | Learn |
| Beats | 10 mins | 0 completed | Learn |
The intensity of the waves from a point source at a distance d from the source is I. At what distance from the sources is the intensity equal to 2I?
A) d/2
B) d/√2
C) d/4
D) d/8
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