Question (31/87)

What does LED stands for?

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(A)  Light Emitting Diode

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(B)  Laser Emitting Diode

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(C)  Light Emitting Device

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(D)  None of Above

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Question (32/87)

What does LASER stands for?

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(A)  Light Amplification by Stimulated Emulsion of Radiation

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(B)  Light Amplitude by Stimulated Emission of Radiation

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(C)  Light Amplification by Stimulated Emission of Radiation

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(D)  Light Amplitude by Stimulated Emulsion of Radiation

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