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1
113
We can hear the supersonic jet planes flying. How?
By Priya123, 4 years ago
replies 1
0
1
144
We cannot hear the sound of the exploding meteors in the sky, though we can see them. Why?
By Priya123, 4 years ago
replies 1
0
1
192
Why do we not hear echoes in our ordinary surroundings?
By Priya123, 4 years ago
replies 1
0
1
192
Which characteristic of a vibrating body determines 1. loudness 2. pitch of the sound prod...
By Priya123, 4 years ago
replies 1
0
1
125
The frequency of a given sound is 1.5 kHz. How many vibrations is it completing in one sec...
By Priya123, 4 years ago
replies 1
0
1
157
If the amplitude increases 3 times, by how much will the loudness increase?
By Priya123, 4 years ago
replies 1
0
1
115
How can a hearing-impaired child communicate?
By Priya123, 4 years ago
replies 1
0
1
101
How can we control the sources of noise pollution?
By Priya123, 4 years ago
replies 1
0
1
105
How do plants help in reducing noise pollution?
By Priya123, 4 years ago
replies 1
0
1
162
The sound from a mosquito is produced when it vibrates its wings at an average rate of 500...
By Priya123, 4 years ago
replies 1
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