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Option 4 : Both A and B are true
The correct answer is option 4 i.e. Both A and B are true.
- The speed of sound - It is the distance covered per unit time by the sound wave.
- The speed of sound varies in different mediums.
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State Substance Speed (m/s) Solid Iron 5950 Liquid Distilled Water 1498 Gas Oxygen 316
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