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Physics for IGCSE & O level - Waves And Sounds (Section 1 - No. 33)

Which equipment can be used to observe wave patterns?
Oscilloscope
Microphone
Loudspeaker
Ruler

स्पष्टीकरण

An oscilloscope is used to display the waveform, along with microphone and loud speaker. A ruler is not used to observe wave patterns.

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