A spherical (globe) fixture with 15 cm fadius has been fixed with a 25 cm hanger at point L which is 2a m height from the floor and at the center of a rectangular shaped room ceiling. A tungsten incandescent lamp which is the source of 2400 Im luminous flux is used. Calculate the horizontal illumination for points A and B, and the vertical illumination for point C. 2.5 m 4 m 3.5 m
A spherical (globe) fixture with 15 cm fadius has been fixed with a 25 cm hanger at point L which is 2a m height from the floor and at the center of a rectangular shaped room ceiling. A tungsten incandescent lamp which is the source of 2400 Im luminous flux is used. Calculate the horizontal illumination for points A and B, and the vertical illumination for point C. 2.5 m 4 m 3.5 m
Related questions
Question
5
Transcribed Image Text:A spherical (globe) fixture with 15 cm fadius has been fixed with
a 25 cm hanger at point L which is 22 m height from the floor
and at the center of a rectangular shaped room ceiling. A
tungsten incandescent lamp which is the source of 2400 Im
luminous flux is used. Calculate the horizontal illumination for
points A and B, and the vertical illumination for point C.
2.5 m
4 m
3.5 m
25 cm
r= 15 cm
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
