Question

The critical angle for crown glass, which has a refractive index of 1.52, is:

Options

• \[37.31^\circ\]

• \[48.75^\circ\]

• \[24.41^\circ\]

• \[41.14^\circ\]

Answer 1

Crown glass has a refractive index of 1.52, which corresponds to a critical angle of \[41.14^\circ\]. This lies between water (\[48.75^\circ\]) and dense flint glass (\[37.31^\circ\]).