Which among the following types of glasses contains Cerium and other rare earths and has a high abso

Q. Which among the following types of glasses contains Cerium and other rare earths and has a high absorption of ultraviolet rays?
Answer: Crookes Glass
Notes: Crookes glass comprises Cerium oxide (CiO2) which sharply absorbs the ultraviolet rays from the sunlight. It is used in making lenses of eye glasses.

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