Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If the threshold of hearing is assumed to be the reference (0 dB), then the threshold of pain is taken to be 120 dB. Lets the corresponding sound intensities be `I_o` and I respectively. Then, `I_o/I` is - Sarthaks eConnect

If the threshold of hearing is assumed to be the reference (0 dB), then the threshold of pain is taken to be 120 dB. Lets the corresponding sound intensities be `I_o` and I respectively. Then, `I_o/I` is:

120

`10^12`

`10^(-12)`

`10^1.2`