Optics1 - ight trave through thepath be e two point ls twe...

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Light travels through the path between two point in space that takes the shortest time !! x A x B X X
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x   A x   B Starting from A, make one touch at the wall and finish at B. Which path takes the shortest time? θ      θ
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Reflection and Mirrors θ i θ r θ i  =  θ r Law of reflection Specular Reflection Diffuse Reflection
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David Hasselhoff Jeremy Jackson Pamela Anderson Who has the better chance to save this  drowning guy? Pam Anderson People run faster on sand than swim in water!
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water air A B Light travels slower in water than in air. Refraction Bending of light at the interface between two different media
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Ex 29-1 A light ray emitted from a point source is reflected from two flat mirrors as shown in the figure. What is the angle A? 45° 30° A 45° 45° 45° 45° 30° (180 - 30 - 45)° 60° 30° 60° 45°
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Q1 A light ray emitted from a point source is reflected from two flat mirrors as shown in the figure. What is the angle A? 1. 45
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Optics1 - ight trave through thepath be e two point ls twe...

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