The TV transmission otower at a particular has a height of 160 m.
By how much the height of tour increased to double its coverage range?

A T.V. tower has a height of 80 m. By how much the height of tower be increased to triple its coverage range?

A T.V. tower has a height of 80 m. What is the maximum distance upto which this T.V. transmission can be received?

The pillars of a temple are cylindrically shaped (see Fig. 13.26). If each pillar has a circular base of radius 20 cm and height 10 m, how much concrete mixture would be required to build 14 such pillars?

0.014 kg of nitrogen is enclosed in a vessel at a temperature of 27^@C . How much heat has to be transferred to the gas to double the r.m.s velocity of its molecules?

A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients ?

Selvi's house has an overhead tank in the shape of a cylinder. This is filled by pumping water from a sump (an underground tank) which is in the shape of a cuboid. The sump has dimensions 1.57 m x 1.44 m x 95cm. The overhead tank has its radius 60 cm and height 95 cm. Find the height of the water left in the sump after the overhead tank has been completely filled with water front the sump which had been full. Compare the capacity of the tank with that of the sump. (Use pi = 3.14)

Greater the height of a T.V. transmitter antenna, greater is its coverage. Prove it.