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प्रश्न
State two differences between light and sound waves.
फरक स्पष्ट करा
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उत्तर
| Light waves | Sound waves | |
| 1. | They are able to move in a vacuum. | A medium is required for their propagation. |
| 2. | Light waves travel at a speed of 3 × 105 m/s. | Sound waves travel at a speed of 330 m/s in air. |
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Light Waves vs Sound Waves
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