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Q.

Which of the following is an energy efficient device for producing light?

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a

DLF

b

CFL

c

FCL

d

LPG

answer is B.

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Detailed Solution

CFL is an energy-efficient device for producing light.
A compact fluorescent lamp (CFL), also known as compact fluorescent light, energy-saving light. A CFL is a fluorescent lamp which is designed to replace an incandescent light bulb;
Although LEDs in white light are today's most energy-efficient and rapidly-developing lighting technology, LEDs which are abbreviated as Light Emitting Diode, use up to 90% of less energy and last up to 25 times longer than traditional incandescent bulbs.

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