Final answer:
An Ektara is a single-stringed musical instrument from India, Bangladesh, and Pakistan. The vibrating string of the Ektara creates a sound that resonates in the sounding box to amplify the sound and create overtones. The shape of the sounding box additionally impacts the range of resonance frequencies.
Step-by-step explanation:
The Ektara is a musical instrument. It is a single-stringed instrument traditionally used in various forms of music across India, Bangladesh, and Pakistan. The term Ektara itself means 'one string,' with 'ek' meaning 'one' and 'tara' meaning 'string'.
What identifies the vibrations of this instrument would be its string as stated in option a) Ektara is a musical instrument, and the strings identify its vibrations. Similar to other stringed instruments with sounding boxes like guitars and violins as mentioned in the reference material provided, the vibrating string creates a sound that resonates in the sounding box. This system greatly amplifies the sound and creates overtones that give the instrument its characteristic flavor. The complexity of the shape of the sounding box also contributes to a wider range of possible resonance frequencies.
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