Which of the following is one of the metals used in LED semiconductor technology?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Gallium.
- Gallium is a chemical element with the symbol Ga and atomic number 31.
- Since its discovery in 1875, gallium has been widely used to make alloys with low melting points. It is extensively used in semiconductors, as a dopant in semiconductor substrates.