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katen-ka-za [31]
3 years ago
5

A ray of light is projected into a glass tube that is surrounded by air. The glass has an index of refraction of 1.50 and air ha

s an index of refraction of 1.00. At what minimum angle will light in the glass tube be totally reflected at the glass/air interface?
Physics
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

θ = 41.8º

Explanation:

This is an internal total reflection exercise, the equation that describes this process is

         sin θ = n₂ / n₁

where n₂ is the index of the incident medium and n₁ the other medium must be met n₁> n₂

        θ = sin⁻¹ n₂ / n₁

let's calculate

       θ = sin⁻¹ (1.00 / 1.50)

       θ = 41.8º

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