- #1
fisico30
- 374
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Hello Forum,
I understand how the primary rainbow is formed: dispersion by water droplets suspended in the air. A single internal reflection takes place. Red color (wavelength) emerges at about 42 degrees with respect to the observer...
but why is the sky below the primary rainbow not showing dispersion? There are water droplets also below the rainbow...It is said that the rays emerger rather horizontally for those droplets...
Perceiving white light means that emerging rays of different wavelengths are more or less overlapping each other..
thanks,
fisico30
I understand how the primary rainbow is formed: dispersion by water droplets suspended in the air. A single internal reflection takes place. Red color (wavelength) emerges at about 42 degrees with respect to the observer...
but why is the sky below the primary rainbow not showing dispersion? There are water droplets also below the rainbow...It is said that the rays emerger rather horizontally for those droplets...
Perceiving white light means that emerging rays of different wavelengths are more or less overlapping each other..
thanks,
fisico30