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Show that an intensity of $10^{-12} \mathrm{W} / \mathrm{m}^{2}$ is the same as $10^{-16} \mathrm{W} / \mathrm{cm}^{2}$

$I _ { 1 } = 10 ^ { - 12 } \frac { \mathrm { W } } { \mathrm { m } ^ { 2 } } = 10 ^ { - 12 } \frac { \mathrm { W } } { 10 ^ { 4 } \mathrm { cm } ^ { 2 } } = 10 ^ { - 16 } \frac { \mathrm { W } } { \mathrm { cm } ^ { 2 } } = I _ { 2 }$

Physics 101 Mechanics

Chapter 17

Physics of Hearing

Sound and Hearing

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

Hope College

University of Sheffield

Lectures

08:15

In physics, sound is a vib…

02:16

00:59

Refer to the following:

00:52

01:19

(I) What is the sound leve…

00:56

00:41

(1) What is the sound leve…

02:36

Show that a doubling of so…

01:40

Find the sound intensity l…

02:55

If $f(x)=10^{x},$ show tha…

01:23

$\bullet$ Find the noise l…

02:30

The intensity of the sound…

00:57

03:52

(a) Show that if $I_{2}=10…

00:47

Show that $A^{2} \times \O…

02:19

The decibel level of a noi…

01:07

Traffic Noise The intensit…

02:03

The relationship between t…

00:39

A device called an insolat…

02:48

Intensity of Light. The in…

02:11

The intensity at the thres…

01:10

The intensity $I$ of light…

we want to show that temper minus 12. What per meter square is the same as 10. Bottom line A 16 war person. Give me your screen. So for this will simply U S Army unit. So we'll write down be numbers, as is the worst need not be changed. So we rated as what's on. Remember that one meter is under centimeters which is 10 square centimeters. So we'll substitute that here a meter is 10 square centimeters on because we have a mitre square here will simply square This gives us tend bar minus 12. What for? In part four centimeter square. So when you simply do this division Temper Ministry back in power for its 10 part minus 16 Bought per centimeter square. That is it.

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