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Can someone help me with my AP physics homework;

#1;

Light is travelling from medium K (refractive index 1.31) to medium S. If the incident angle is 49.40 and refracted angle in#2;

Light is travelling from medium H (refractive index 1.57) to F (refractive index 1.44). What would be the critical angle (in#3;

A diverging lens forms an image at 18.7 m in front of the lens when an object is placed at 39.0 m in front the lens. What is

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Answer #1

I a) Given ny = 1:31 0,- 49. 4° Oz 36.6° M23 2 & nells law sim 0, , a) ทน sing 1.3 sin (49.4°) sin (36.6) 2 4 ne 1.65 b) =

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