Optical Diodes MCQs Quiz Online PDF | Download eBooks
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"Early LEDs were built up of semiconductor" Multiple Choice Questions (MCQ) on optical diodes with choices si, sio, gaas, and be for online engineering graduate colleges. Practice optical diodes quiz questions for merit scholarship test and certificate programs for undergraduate engineering schools.
MCQs on Optical Diodes PDF Download eBook
MCQ: Early LEDs were built up of semiconductor
- Si
- SiO
- GaAs
- Be
C
MCQ: GaP were used as light emitter to achieve pale
- red light
- yellow light
- green light
- blue light
C
MCQ: GaAs LED emits
- microwaves
- IR radiations
- Ultra Violet
- X-rays
B
MCQ: Light color and Visibility is determined in LED by
- microwave
- wavelength
- spectrum
- capacitance
B
MCQ: A common display device of LED is
- seven segment display
- red light pointer
- LED T V
- multilight pointer
A