The critical angle for refraction from glass to air is 30° and that from water to air is 37°.Find the critical angle for refraction from glass to water.

Å

1,55

5 400 Å

n

=

193548,4 km/s

1,55

3 10 m/s

n

c

Vidrio v: =

3 724,14 Å

1,45

5 400 Å

n

=

206 896,5 km/s

1,45

3 10 m/s

n

c

Aceite = v:

07,1

45,1

55,1

n

n

I

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =