Question

What is the difference between flint glass and crown glass?

Answer 1

Flint glass is an optical glass which has high refractive index and high dispersion, potassium and lead silicates are used in making it

Crown glass is an optical glass used in lenses which has low refractive index and low dispersion

Answer 2

Answer:

The flint and crown glasses can be differenciated on the basis of their optical properties. The difference lies in the intensity of dispersion or spread out of the colors. The crown glass shows low dispersion of color whereas, the flint glass shows the high dispersion of color. A crown glass exhibit low reflective index whereas, the flint glass shows the high reflective index. A crown glass is used to make the convex lens and the flint glass is used to make the concave lens.