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Which one of the following types of glass can cut off ultraviolet rays? 

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Which one of the following types of glass can cut off ultraviolet rays? 

(a) Soda glass 

(b) Pyrex glass

(c) Jena glass

(d) Crooked glass

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(d) Crooked glass

Crookes glass is a kind of glass which contains mainly cerium oxide and silica. The cerium oxide can sharply absorb the harmful UV rays coming from the sun. So it is used in making sunglasses.

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