Question

what is the critical angle of water?​

Answer 1

So the critical angle is defined as the angle of incidence that provides an angle of refraction of 90-degrees. Make particular note that the critical angle is an angle of incidence value. For the water-air boundary, the critical angle is 48.6-degrees.

Answer 2

Answer:

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sσ τнє criτicαℓ αทgℓє is ∂єƒiทє∂ αs τнє αทgℓє σƒ iทci∂єทcє τнατ ρrσvi∂єs αท αทgℓє σƒ rєƒrαcτiσท σƒ 90-∂єgrєєs. мαкє ραrτicυℓαr ทστє τнατ τнє criτicαℓ αทgℓє is αท αทgℓє σƒ iทci∂єทcє vαℓυє. ƒσr τнє ωατєr-αir вσυท∂αry, τнє criτicαℓ αทgℓє is 48.6-∂єgrєєs......