B.A./B.COM. LL.B. (5 YEAR LAW / U.G. LAW) Panjab University Entrance Exam 2019 : MCQs and Answer Key

Practice Mode:
21.

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

The answer is: D