Illumination MCQ - Electrician (Set-1) with Answers

12 lumens per watt

9.6 lumens per watt

15 lumens per watt

240 lumens per watt

1570

500

250

125

velocity of light

frequency

wave length

both B and C

excessive luminance

excessive lighting contrast in the field of vision

either A or B

none of the above

transmits ail the incident light

absorbs all the incident light

diffuses all the incident light

all of the above