Physics
Sounds above …………… are termed as noise pollution.
- 75 dB
- 120 dB
- 100 dB
- 80 dB
Sound
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Answer
120 dB
Reason — Noise pollution refers to unwanted or harmful sound that interferes with normal activities and causes annoyance or disturbance. Sounds above 120 dB is considered as potentially harmful to human health and contribute to noise pollution.
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Related Questions
For normal ears, sensitivity is maximum at the frequency :
- 5 kHz
- 10 kHz
- 1 kHz
- 500 Hz
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- loudness increases
- pitch increases
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