alleryCrown glass has a refractive index of:
A2.42
B1.72
C1.52
D1.33
Answer & Solution
Correct answer: C. 1.52
1. Crown glass sits between water and flint glass.
2. Its refractive index is 1.52.
3. Its critical angle is 41.14 degrees.
_Source: syllabus Physics Part II, Ch 9 'Ray Optics and Optical Instruments'_
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