Class 7 Science MCQs - Chapter 24
Sound Waves Multiple Choice Questions (MCQs) PDF Download - 13
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Sound Waves Questions & Answers PDF Download: MCQ Quiz 13
MCQ 61: One example of string instrument is
- piano
- drum
- saxophone
- trombone
MCQ 62: The speed of sound in glass is
- 2000 m/s
- 6000 m/s
- 10000 m/s
- 14000 m/s
MCQ 63: The microphone changes the sound waves into
- mechanical signals
- electrical signals
- light signals
- wave signals
MCQ 64: Sounds are chiefly produced by
- friction
- energy
- vibration
- disturbance
MCQ 65: The distance between two points of a wave in a phase is known as
- wave front
- frequency
- amplitude
- wavelength
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