MCQ
Which of the following cuts ultraviolet rays
- ASoda glass
- ✓Crooke's glass
- CPyrax
- DNone of these
✓
Answer
Correct option: B.
Crooke's glass
b
(b) Crook's glass is a special type of glass containing cerium oxide. It does not allow the passage of ultra violet ray and is used for making lenses.
(b) Crook's glass is a special type of glass containing cerium oxide. It does not allow the passage of ultra violet ray and is used for making lenses.
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