آواز درج ذیل میں سے کس میں سب سے سست سفر کرتی ہے؟
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A. Steel
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B. Air
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C. Water
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D. Diamond
Explanation
- Sound travels slowest in air, with a speed of approximately 343 meters per second (m/s) at 20°C.
- This is because air is a gas and has a low density and stiffness, which allows sound waves to propagate more slowly through the material.
The speeds of sound in different materials:
- Air: 343 m/s
- Water: 1433 m/s
- Wood: 3300-3600 m/s
- Brick: 4176 m/s
- Steel: 6100 m/s
- Diamond: 12000 m/s
آوازیں _______ سے زیادہ ٹھوس کے ذریعے سفر کرتی ہیں؟
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A. Liquid
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B. Solids
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C. Both A and B
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D. Gases
Explanation
- Sounds travel faster through solids than through both gases and liquids.
- Solids have a more rigid structure, allowing sound waves to propagate more efficiently and at a faster speed.
Here's a comparison of sound speeds in different materials:
- Solids (e.g., steel): up to 5,960 m/s (13,140 ft/s)
- Liquids (e.g., water): up to 1,482 m/s (4,862 ft/s)
- Gases (e.g., air): approximately 343 m/s (1,125 ft/s)
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❌ Wrong: 0 |
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