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The explosion of a fire cracker in the a...

The explosion of a fire cracker in the air at a height of 40 m produces a 100 dB sound level at ground below. What is the instantaneous total radiated power? Assume that it radiates as a point source.

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201 watt
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AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
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  7. The intensity of sound from a point source is 1.0 xx 10^(-8) W//m^2 at...

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  8. Most people interpret a 9.0 dB increase in sound intensity level as a ...

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  9. About how many times more intense will the normal ear perceive a sound...

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  10. The explosion of a fire cracker in the air at a height of 40 m produce...

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  11. The sound level at a point 5.0 m away from a point source is 40 dB. Wh...

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  12. If the intensity of sound is doubled, by how many decibels does the so...

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  13. Sound with intensity larger than 120 dB. appears painful to a person. ...

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  14. Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...

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  15. Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...

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  16. Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...

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  17. Three component sinusoidal waves progressing in the same direction alo...

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  20. A road runs midway between two parallel rows of buildings. A motorist ...

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