People Development & Environment Environmental Issues Pollution

Noise levels (db) are referenced to the human hearing threshold at a frequency of

1

50 Hz

2

100 Hz

3

1 KHz

4

4 KHz

Sponsored

hivanix.in

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters