L
Lauren M
Guest
A 19 cd point source lamp and a 64 cd point
source lamp cast equal illuminances on a wall.
If the 19 cd lamp is 6.2 m from the wall, how
far from the wall is the 64 cd lamp? Answer
in units of m.
source lamp cast equal illuminances on a wall.
If the 19 cd lamp is 6.2 m from the wall, how
far from the wall is the 64 cd lamp? Answer
in units of m.