how can the sound energy be negative as is written 10raise to power -12W per square metre

Asked by lovemaan5500 | 1st Dec, 2017, 06:59: AM

Expert Answer:

The intensity 10-12 W/m2 is not negative. It is very small fraction. If you write in decimal form it is 0.000000000001. In Scientific article/text
it is difficult to write such a small number, so it is written in exponent notation like 10-n  where n is the integer and that indicates n-1 zeros after decimal point

Answered by  | 1st Dec, 2017, 11:34: AM