# REVERSIBILITY - OBSERVATIONS Table No 01 shows the angles...

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1 OBSERVATIONS Table No. 01 shows the angles of reflection and angles of refraction as observed from the ray table. Trial 1 Ray Incident on flat surface Trial 2 Ray incident on the curve surface Angle of Incidence ( ±² ) Angle of Refraction ( ³² ) Angle of Incidence ( ±´ ) Angle of Refraction ( ³´ ) 0 0 µ 0 µ 0 µ 10 7 µ 7 µ 11 µ 20 13 µ 13 µ 20 µ 30 19 µ 19 µ 29 µ 40 25 µ 25 µ 39 µ 50 31 µ 31 µ 50 µ 60 35 µ 35 µ 57-59 µ 70 39 µ 39 µ 68-71 µ 80 41 µ 41 µ 75-80 µ Table No. 01: Results CALCULATIONS AND RESULTS Determining the axes for graph. ·¸¹ º»¶¼½ ¸¾ ¿ À ¶ ·Á¹ÂÃ¸Á º»¶¼½ ¹¾ ¿ Rearranging: º»¶¼½ ¸¾ ¿ ÀÄ ·Á¹ÂÃ¸Á ·¸¹ Äº»¶¼½ ¹¾ ¿ Equating to y = mx We can assume º»¶¼½ ¸¾ ¿ for the y-axis and º»¶¼½ ¹¾ ¿ for the x-axis. Similarly, º»¶¼½ ¸Å ¿ ÀÄ ·¸¹ ·Á¹ÂÃ¸Á Äº»¶¼½ ¹Å ¿ From Graph No. 01, m 1 (gradient of º»¶¼½ ¸¾ ¿ vs º»¶¼½ ¹¾ ¿ ) = 1.5028 m 1 = Æ ÇÈÉÊËÌÈ Æ ÇÌÉ = ÄÆ ÇÈÉÊËÌÈ ¾ÍÎ = 1.5028 (n air = 1.0) ·Á¹ÂÃ¸Á = 1.50. (2 d.p.) Similarly, m 2 = Æ ÇÌÉ Æ ÇÈÉÊËÌÈ = 0.672 ·Á¹ÂÃ¸Á ÄÄÄÄÄÄÄÄÄÄÄÄÀÄ ¾ ÎÍÏÐÅ ÄÄÄÄÄÀ ÄÄÄÄÄÄÑÍÒÓÄ¼ÔÄÕÍ ÖÍ ¿

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2 Trial 1: x (sin(θ r1 ) 0 0.1219 0.225 0.3256 0.4226 0.515 0.5736 0.6293 0.6561 y (sin(θ i1 ) 0 0.1736 0.342 0.5 0.6428 0.766 0.866
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## This note was uploaded on 10/30/2011 for the course MECHATRONI EN11ME2050 taught by Professor Perera during the Spring '11 term at Asian Institute of Technology.

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REVERSIBILITY - OBSERVATIONS Table No 01 shows the angles...

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