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Unit 12: Waves + Unit 13: Sound

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Standing waves are formed due to:

A Reflection of waves B Refraction of waves C Diffraction of waves D Absorption of waves

A Sound wave B Water wave C Electromagnetic wave D Seismic wave

A Meter B Second C Hertz D Decibel

A Parallel to wave direction B Along the wave path C Perpendicular to wave direction D In spiral paths

A Light waves B Transverse waves C Longitudinal waves D Surface waves

A Frequency B Amplitude C Time period D Wave speed

A 0–20 Hz B 20–20,000 Hz C Above 20,000 Hz D Below 20 Hz

A Transverse waves B Electromagnetic waves C Longitudinal waves D Surface waves

A Stone B Table C Tuning fork D Wall

A Soft sounds B Moderate sounds C Loud noise D Silence