Which of the following fectures are not shown by quartz glass ?

1.	Which of the following fectures are not shown by quartz glass ?
Answer» This is a crystalline solid. Refractive INDEX is same in all the directions. This has definite heat of fusion. This is also CALLED super COOLED liquied . \ Solution :(a) SIS not correct because quartz glass is amorphous. © is not correct because amorphous solids have no definite heat of fusion.

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