In a school classroom a warm-white ceiling-mounted spot light, with 1 = 9500cd along the light axis, is directed at an a

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In a school classroom a warm-white ceiling-mounted spot light, with 1 = 9500cd along the light axis, is directed at an a

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In A School Classroom A Warm White Ceiling Mounted Spot Light With 1 9500cd Along The Light Axis Is Directed At An A 1
In A School Classroom A Warm White Ceiling Mounted Spot Light With 1 9500cd Along The Light Axis Is Directed At An A 1 (46.61 KiB) Viewed 17 times
In a school classroom a warm-white ceiling-mounted spot light, with 1 = 9500cd along the light axis, is directed at an angle of 45 degrees (measured from the ceiling plane) at a poster of the solar system (which is sited 4.4 m horizontally from the light) and which contains text, some of which is quite small. Find the lux level at the brightest point on the poster and comment of whether this is a suitable level. What issues can you see in using spot lighting in a classroom to provide lighting to desks (less than 100 words).
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