Four students a, b, c and d trace the path of a ray of light passing through a glass slab for an angle of incidence 40 and measure the angle of refraction. Values measured by each of them were 18, 22, 25 and 30, respectively. Which student has performed the experiment correctly
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Answer:
By Snell's law:
u1sini=u2sinr
Sin40/1.5=sinr
Sinr=0.6427/1.5
r= 25.37
Hence c is correct
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