Q.Assertion A : Longer outside walls should run in east-west direction and shorter ones in north-south direction. Reason R : This causes minimum wall area to expose to the direct sun rays and thus cause less absorption and radiation of heat.
Correct answer: Both A and R are true and R is the correct explanation of A
Explanation
As the sun rises in the east culminates in the south and sets in the west so, the longer outside wall should run in east-west direction which causes minimum wall area to expose to the direct sunrays and thus cause less absorption and radiation of heat.
As the sun rises in the east culminates in the south and sets in the west so, the longer outside wall should run in east-west direction which causes minimum wall area to expose to the direct sunrays and thus cause less absorption and radiation of heat.