JEE Main 202118 Mar, Evening shiftPhysicsMediumCommunication Systems79× since 2003
A TV transmission tower antenna is at a height of 20 m. Suppose that the receiving antenna is at.
(i) ground level
(ii) a height of 5 m.
The increase in antenna range in case (ii) relative to case (i) is n%.
The value of n, to the nearest integer, is ___________.