Distinguish between sound waves and radio waves of frequency 15khz
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# Sound waves can't travel through free space , but radio waves can .
# Velocity of sound waves in air = 332m/s² , Velocity of radio waves in free space = 3 x 10⁸
# Velocity of sound increases with rise in temperature . Velocity of radio waves is not affected by temperature .
# Sound waves of frequencies ranging from 20Hz to 20KHz can be detected by the ear . Radio waves cannot be detected by the ear .
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# Sound waves can't travel through free space , but radio waves can .
# Velocity of sound waves in air = 332m/s² , Velocity of radio waves in free space = 3 x 10⁸
# Velocity of sound increases with rise in temperature . Velocity of radio waves is not affected by temperature .
# Sound waves of frequencies ranging from 20Hz to 20KHz can be detected by the ear . Radio waves cannot be detected by the ear .
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