Use Snell\'s Law/equations: If the Sun\'s incident light waves are 60 degree fro

Question

Use Snell's Law/equations: If the Sun's incident light waves are 60 degree from the vertical normal entering a thick glass window. a.) What is the angle of the reflected waves off of the glass window. b.) If the refracted waves going inside are at a 30 degree angle from the normal, what would be the index of refraction of the "glass window"? Use N1 = 1.0 for Air and the Sin(x) = Opposite/Hypotenuse What that type of lens does your Physics Instructor wear in his "right eye" glasses if he is "near "? Show Ray Diagrams of his right eye before and after the corrected lens is fitted Label the retina at the back of the eye as the focal point.

Explanation / Answer

1a)in reflection phenomenon,angle of reflection=angle of incidence=60degrees

b)given angle of incidence=i=60 degrees

Angle of refraction=r=30 degrees

Per Snells law, sin i/sin r =refarctive index of glass

Or, sin 60/sin 30=1.73

Therefore, refractive index = 1.73

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