Mining Engineering > GATE 2018 > Mine Lighting
A roadway in a mine, a single light source as shown, emits light uniformly in all directions. The floor level illumination at station A is 20 lux. The floor level illumination at a point B in lux is ____________.

Correct : 8.5

Similar Questions

An underground workshop has dimensions of 8 m length, 6 m width and 4 m height. Four identical luminaires are placed at the four corners of the roof. Each lumin...
#172 Fill in the Blanks
A trapezium has vertices marked as P, Q, R and S (in that order anticlockwise). The side PQ is parallel to side SR. Further, it is given that, PQ = 11 cm, QR...
#4 MCQ
Mosquitoes pose a threat to human health. Controlling mosquitoes using chemicals may have undesired consequences. In Florida, authorities have used geneticall...
#6 MCQ

Related Topics

mining engineering GATE 2018 light uniform distribution floor level illumination GATE mining engineering light source uniform distribution illumination calculation mining engineering questions uniform light distribution problems

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: