Lateral Surface Area of a cuboid=2h(l+b)
A cuboid has 4 side faces
Two faces are l × h and two faces are b × h
So total = 2(lh)+2(bh)=2h(l+b)2(lh) + 2(bh) = 2h(l + b)2(lh)+2(bh)=2h(l+b)
Question : Rate of cooling depends on the:
Option 1: temperature difference between the body and the surrounding
Option 2: nature of the radiating surface
Option 3: area of the radiating surface
Option 4: all of these
Question : In which year did E. Gorter and F. Grendel make a breakthrough by examining the surface area of lipids and concluding that the lipid surface surrounding cells must be of two layers?
Option 1: 1910
Option 2: 1925
Option 3: 1945
Option 4: 1962
Question : A hall of 10 m in length, 5 m in width, and 6 m in height is to be painted (one side only). Determine the total surface area to be painted. (neglect the area of windows and doors)(floor area is NOT to be painted)
Option 1: 300 m2
Option 2: 280 m2
Option 3: 330 m2
Option 4: 230 m2
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