Suzie is riding a merry-go-round that is 3.5 m in diameter. If she travels 12 revolutions in a minute, what is her velocity?
1 answer:
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Answer:
the index of refraction of the coating is 1.33
Explanation:
Given the data in the question;
refraction index of interior portion of the rod η = 1.55
angle of incidence θ = 59.5°
From Snell's law, we know that;
η × sinθ
= η
× sinθ
where η is the index of refraction of the rod ( material 1 )
θ is the angle of incidence
η is the index of refraction in outer coating ( material 2 )
θ is the angle of refraction
so we substitute our values into the equation;
η × sinθ
= η
× sinθ
1.55 × sin( 59.5° ) = η × sin( 90° )
1.55 × 0.861629 = η × 1
1.3355 = η × 1
η = 1.33 { 2 decimal places }
Therefore, the index of refraction of the coating is 1.33