(A) Fluorescent bulb (X)
(B) Neon signs (X)
(C) Lasers (X)
(D) All of these ()
Answers: Plasma is used in All of these.
(A) Fluorescent bulb (X)
(B) Neon signs (X)
(C) Lasers (X)
(D) All of these ()
Answers: Plasma is used in All of these.
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