Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment Environmental Issues Pollution
What will be the resultant of two noise levels of 81 dB and 90 dB generated by two independent sources?
1
∼ 96 dB
2
∼ 91 dB
3
∼ 98 dB
4
∼ 118 dB