Asoap bubble, when illuminated with light of frequency 5.27 hz × 1014 hz, appears to be especially reflective. if it is surrounded by air and if its index of refraction is 1.33, what is the thinnest thickness the soap film can be? (c = 3.00 × 108 m/s)

Explanation:

= Refractive index of bubble = 1.33

f = Frequency of light =

c = Speed of light =

The wavelength of light is given by

Wavelength is also given by

m = 1 for minimum thickness

The minimum thickness is

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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