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AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
- A railroad train is travelling at 30 m/s in still air. The frequency o...
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- A railroad train is travelling at 30 m/s in still air. The frequency o...
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- A 300 Hz source, an observer and wind are moving as shown in the figur...
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- A person standing on a road sends a sound signal to the driver of a ca...
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- A stationary sound sources of frequency 334 Hz and a stationary obser...
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- Spherical waves are emitted from a 1.0 watt source in an isotropic non...
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- The intensity of sound from a point source is 1.0 xx 10^(-8) W//m^2 at...
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- Most people interpret a 9.0 dB increase in sound intensity level as a ...
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- About how many times more intense will the normal ear perceive a sound...
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- The explosion of a fire cracker in the air at a height of 40 m produce...
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- The sound level at a point 5.0 m away from a point source is 40 dB. Wh...
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- If the intensity of sound is doubled, by how many decibels does the so...
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- Sound with intensity larger than 120 dB. appears painful to a person. ...
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- Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...
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- Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...
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- Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 c...
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- Three component sinusoidal waves progressing in the same direction alo...
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- A soldier walks towards a high wall taking 120 steps per minute. When ...
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- A man stands before a large wall at a distance of 50.0m and claps his ...
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- A road runs midway between two parallel rows of buildings. A motorist ...
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