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A thin hollow prism is filled with liquid.Angle of prism = 60°,Angle of minimum deviation=30°. What is the refractive index of the liquid?I remember only 2 options properly1) 1.412) 1.5.... (1.5 something)

A thin hollow prism is filled with liquid.Angle of prism = 60°,Angle of minimum deviation=30°. What is the refractive index of the liquid?I remember only 2 options properly1) 1.412) 1.5.... (1.5 something)

Grade:11

1 Answers

Vikas TU
14149 Points
5 years ago
Dear Student,
As angle of deviation(D) = 30 degree
Angle of Prism(A) = 60
And we also know that
Refractive index = sin(A+D/2)/sin A/2
  • n = sin((60+30)/2)/sin 60/2
  • n = sin 45/sin 30
  • n = √2
  • n = 1.41
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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