What is DECIBEL (dB)? Learn about this important Sound Level symbol!

[@r.p.bharti1829]

Good job bro, carry on👍🏻👍🏻👍🏻👌🏻👌🏻

[@shwetaart5262]

Wah sir very good

[@AjayKumar-pl5rh]

Very informative and useful.

[@yramvilas9846]

Nice sir

[@ankitadas5351]

Thank you so much sir.😊😊....you always choose such unique and informative topic ....👍👍

[@AjayKumar-pl5rh]

Very nice.

[@ashishprajapati6936]

Great explaination .....

[@aniketrout1353]

always lovable

[@LuckySingh-xk2ug]

Useful information

[@Yantrology]

Thanks