Dimensional formula for thermal conductivity is (here K denotes the temperature):

Amount of solar energy received on the earth’s surface per unit area per unit time is defined a solar constant. Dimension of solar constant is :

Using screw gauge of pitch 0.1 cm and 50 divisions on its circular scale, the thickness of an object is measured. It should correctly be recorded as

If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for energy is