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Electrical Engineering MCQ Question & Answer in PDF Download

Q.

The purpose of coating the fluorescent tube from inside with white power is

  • ATo improve its life
  • BTo improve the appearance
  • CTo change the colour of light emitted to white
  • DTo increase the light radiations due to secondary emissions
Correct Answer : (D)

To increase the light radiations due to secondary emissions
Hints :

The purpose of coating the fluorescent tube from inside with white power is To increase the light radiations due to secondary emissions.

Electrical Engineering MCQ Question & Answer in PDF Download
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