The speed of light in a material is 0.41 c. What is the critical angle of a light ray at the interface between the material and a vacuum? | Cheap Nursing Papers

The speed of light in a material is 0.41 c. What is the critical angle of a light ray at the interface between the material and a vacuum?

The speed of light in a material is 0.41 c. What is the critical angle of a light ray at the interface between the material and a vacuum?Answer a.24° b.22° c.17° d.19°

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