Q. Which of the following is used for making optical instruments?
A) $SiO_{2}$
B) $Si$
C) $SiH_{4}$
D) $SiC$
Explanation
(a)
Silica $(SiO_{2})$ is used for making optical instruments.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.