Question

6. Which of these can be used as a substitute for glass in windows?
a) Polythene, b)PVC, c) Perspex, d) Teflon
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Answer 1

a) polythene or Clear polycarbonate sheets

hope, it should help you.

Answer 2

Perspex is used as substitute for glass in window.

• Perspex is a thermoplastic.
• Perspex  acrylic is extremely versatile
• It can be used in applications as diverse as signs, POS, visual communication, window glazing, acoustics.
• It is transparent like glass but it is much stronger.
• It is used as a substitute for glass in windows.
• The brand perspex uses a material called Polymethyl Methacrylate (PMMA), an acrylic.
• This acrylic material is also referred to as acrylic glass, plexiglass and various other trade names such as Sheet Plastics

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