Which among the following glasses is used in the making of Optical apparatus?

Soft glass
Hard glass
Crown glass
Glass Laminates

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Crown glass

The correct answer is option 3) i.e. Crown glass.

Crown glass is used in the making of Optical apparatus.
It contains Silica(SiO₂), Boric Oxide(B₂O₃), Potassium Oxide(K₂O₃), Barium Oxide(Ba₂O₃).
Soft glass is used in the making of Windowpanes, beverage bottles, etc.
Hard glass is used in the making of chemical apparatus.
Glass laminates are used in the making of windows and screens of cars, trains, and Aircraft.

4 views Answered 2022-09-04 04:29

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