A glass of ethanol (n = 1.36) has an ice cube (n = 1.309) floating in...
A glass of ethanol (n = 1.36) has an ice cube (n = 1.309) floating in it. A light beam in the ethanol goes into the ice cube at an angle of refraction of 85.0∘
A. Find the angle of incidence in the ethanol.
B. Find the ratio of the wavelength of the light in ice to its wavelength in ethanol.
Homework Answers
Given
angle of refraction of ice 85.0°
For ethanol n=1.36
For ice cube n=1.309
Part -A
By using Snell's law
......(1)
Where 
is a angle of incidence
And 
is angel of refraction
By using equation (1)
Part - B
For wavelength ratio
We know that
So
Where 
for ice
And 
for ethanol
Ratio of the wavelength of the light in ice to its wavelength in ethanol is
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