Question

write a trigonometric expression for the refracted angle and write the refracted angle in terms of distance d and material width w

Answer 1

Answer: The Diagram of the refracted angle is attached below

answer : ∅ = cos^-1 ( w/d )

Explanation:

The trigonometric expression for the refracted angle

with respect to ; Distance ( d ) and width ( w )

Cos ∅ = Adjacent / Hypotenuse ----- ( 1 )

where; adjacent = W . Hypotenuse = d

back to equation 1

Cos ∅ = w / d

∴ ∅ = cos^-1 ( w/d )