Physics-
General
Easy
Question
When the prism is in the minimum deviation position (Figure). Choose the correct one.
- i1 = i2 = I and r1 = r = r
- Angle of minimum deviation is. Dm=2 (i-A)
- Angle of incident
- Angle of refraction r = A/4
The correct answer is: i1 = i2 = I and r1 = r = r
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Figure shows a cross - section of light pipe made of glass fibre of refractive index 1.68. The outer coating of the pipe is made of a material of refractive index 1.44. What is the range of angles of the incident rays with the axis of the pipe for which total internal reflection inside the pipe takes place ?
Figure shows a cross - section of light pipe made of glass fibre of refractive index 1.68. The outer coating of the pipe is made of a material of refractive index 1.44. What is the range of angles of the incident rays with the axis of the pipe for which total internal reflection inside the pipe takes place ?
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