Question
State two differences between light waves and sound waves.
✓
Answer
Two differences between light waves and sound waves.
| Light waves | Sound waves | ||
| 1. | Light waves do not require a medium for propagation. | 1. | Sound waves require a medium for propagation. |
| 2. | Light waves travel with a speed of $3 \times 10^8 m/s.$ | 2. | Sound waves travel with a speed of $332$ m/s. |
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