Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
Which material is generally used for LED? | |
A. | Compounds of silica [Wrong Answer] |
B. | Compounds of gallium [Correct Answer] |
C. | Compounds of phosphorus [Wrong Answer] |
D. | Compounds of sulphur [Wrong Answer] |