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Which type of glass is used in the manufacture of artificial gems, bulbs, lenses, etc?(a) Soda-lime glass(b) Special glass(c) Potash-lead glass(d) Common glassI got this question in an interview.This intriguing question originated from Glass in section Materials for Construction of Basic Civil Engineering

Answer»

Correct answer is (c) Potash-lead glass

Best EXPLANATION: Potash-lead glass is a MIXTURE of potassium silicate and lead silicate.It possesses a bright lustre and has a GREAT refractive power, hence it is used in the manufacture of artificial gems, BULBS, lenses, etc.



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