Why can you see glass and your reflection
1 answer:
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Answer:
the rms speed of cesium atoms that have been cooled to a temperature of 100nK = 0.43cm/s or 0.0043m/s
Explanation:
The concept of root mean square velocity is applied, where the average translational kinetic is related to the actual kinetic energy, the expression for the root mean square is the generated.
The detailed steps and appropriate substitution is as shown in the attachment.
We can solve the problem by using Snell's law:
where
is the refractive index of the first medium (in this case, air, so 
)
is the refractive index of the second medium (in this case, water, so 
)
is the angle of incidence of the light, with respect to the vertical, so 
is the angle of refraction of the light inside the water, with respect to the vertical
Re-arranging the equation and using the data of the problem, we can find the the angle of refraction of the light inside the water:
where
Re-arranging the equation and using the data of the problem, we can find the the angle of refraction of the light inside the water: