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Q.

An energy efficient device for producing light is:

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a

CFL

b

CNG

c

LPG

d

MCB

answer is A.

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Detailed Solution

Concept- Energy efficient lighting includes the use of more illumination from less power lights by replacing high power consumption lights like incandescent, high discharge lamps, etc. This is also used in various control technologies like GPRS or GSM or SCADA based controls.
The CFL is a lighting device which is energy efficient and it stands for Compact Fluorescent Lamps. It uses halogen gas for the electric bulb to glow. Due to ionisation, the atoms of halogen gas produce light but convert maximum supply in the form of light energy.
Hence, CFL is an energy efficient device for producing light.
Hence, the correct answer. is option 1.

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An energy efficient device for producing light is: