![The angle of incidence i and refraction r are equal in a transparent slab when the value of i is](https://www.gkseries.com/blog/wp-content/uploads/2022/05/The-angle-of-incidence-i-and-refraction-r-are-equal-in-a-transparent-slab-when-the-value-of-i-is.png)
Q. The angle of incidence i and refraction r are equal in a transparent slab when the value of i is
A. 0°
B. 45°
C. 90°
D. depend on the material of the slab
Answer: 0°
A. 0°
B. 45°
C. 90°
D. depend on the material of the slab
Answer: 0°
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