what effect will be produced on sound if we move upwards above the surface of earth.
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Wind, moving faster at greater heights, causes a change in the effective speed of sound with distance above ground. When one speaks with the wind, the sound wave is refracted back down to the ground, and one's voice is able to “carry” farther than on a still day.
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hope it helps
Explanation:
If the air above the earth is warmer than that at the surface, sound will be bent back downward toward the surface by refraction. Sound propagates in all directions from a point source.
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