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?

Question

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?

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Linh Đan 6 months 2021-08-28T11:03:08+00:00 2 Answers 0 views 0

Answers ( )

  1. Sapo1
    0
    2021-08-28T11:04:40+00:00
    Reply

    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.

  2. trucchi
    0
    2021-08-28T11:04:46+00:00
    Reply

    Answer: refracts it

    Explanation: i used the answer on acellus

    and it was wrong

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