Day light factor in living room should be?: (A) 8%, (B) 6%, (C) 10%, (D) 15%
Answer is A. park's textbook of preventive and social medicine 23rd edition. *daylight factor is the ratio of illumination at a given point to illumination at a point exposed simultaneously to the whole hemisphere of the sky excluding direct sunlight * it is recommended that in living room D.F. should be atleast 8%and in kichen about 10%.