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Illumination

Illumination
Unit of luminous flux is

  lumens.
  steradians.
  candela.
  lux.

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Illumination
The solid angle subtended by an area of 2400 cm2 on the surface of a sphere of diameter 1.2 m is

 1 / 3.
  3 / 2.
  2 / 3.
 2 / 5.

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Illumination
Candela is the unit of which?

 Frequency.
 Wavelength.
 Luminous flux.
 Luminous intensity.

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Illumination
In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to

  utilization factor.
  beam factor.
  waste light factor.
  absorption factor.

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Illumination
Illumination can be expressed in

  radians.
  candela.
  lux.
  lumens.

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Illumination
Total flux or lumens required in any lighting scheme depends inversely on

  reflection factor.
  utilization factor.
None of these
  reduction factor.

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MORE MCQ ON Illumination

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