The nature of light emitted by LEDs depends upon
A. nature of material used in LEDs
B. the difference in energy levels of material used
C. both 'a' and 'b
D. neither'a' nor 'b'
Answer:C
The nature of light emitted by LEDs depends upon
A. nature of material used in LEDs B. the difference in energy levels of material used C. both 'a' and 'b D. neither'a' nor 'b'