NDA Government Jobs Exams

Which one among the following is the correct order of power consumption for light of equal intensity ?
(A) CFL tube < Fluorescent tube < Incandescent Bulb < Light emitting diode
(B) Light emitting diode < CFL tube < Fluorescent tube < Incandescent bulb
(C) CFL tube < Fluorescent tube < Light emitting diode < Incandescent bulb
(D) Incandescent bulb < Light emitting diode < Fluorescent tube < CFL tube

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NDA Other Question
Which one among the following is an electrochemical cell that cannot be charged ?
(A) Electrolytic cell (B) Storage cell
(C) Primary cell (D) Fuel cell One feels heavier in a lift when the lift
(A) is going down steadily (B) just begins to go up
(C) is moving up steadily (D) descends freely