Environment & Ecology · Environmental Studies
ध्वनि प्रदूषण को मापने की इकाई क्या है?
- 1वाट (W)
- 2पास्कल (Pa)
- 3डेसिबल (dB)✓
- 4हर्ट्ज़ (Hz)
सही उत्तर देखें
डेसिबल (dB)
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