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
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
- A vibrating tuning fork is placed on a sonometer box and the distance between the bridges is adjusted until the paper rider in the middle of the wire (between the bridges) flies off. identify the forced vibration and resonance. explain briefly.
- why is the amplitude of forced vibration very small when the frequency of the external force is different from the natural frequency of the body?
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