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Basile [38]
2 years ago
7

A ray in oil (n = 1.52) reaches a boundary with water (n = 1.33) at 55.9 deg. Does it reflect internally or refract into the air

?
Physics
1 answer:
natta225 [31]2 years ago
5 0

Answer:

Ray reflects internally

Explanation:

Given:

Ray in oil (n1) = 1.52

Ray in water (n2) = 1.33

θ = 55.9°

Computation:

Step 1 . Find critical angel(θc)

Sinθc/Sin90° = Ray in water / Ray in oil

Sinθc/1 = 1.33/1.52

θc = 61°

Since, θ = 55.9° is smaller than θc = 61°

So, Ray reflects internally.

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To solve this problem we will apply the concepts related to energy conservation. From this conservation we will find the magnitude of the amplitude. Later for the second part, we will need to find the period, from which it will be possible to obtain the speed of the body.

A) Conservation of Energy,

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