Navigate

In communication with help of antenna if height is doubled then the range

In communication with help of antenna if height is doubled then the range covered which was initially r would become

Options

(a) √2r
(b) 3r
(c) 4r
(d) 5r

Correct Answer:

√2r

Explanation:

Range r = √(2Rh)

Where R is the radius of the earth and h is the height of the antenna

.·. r’ = √[2R(2h)] = √2 [√(2Rh)] = √2 r

AIIMS2007
admin:

Related Questions

  1. The order of distance of an electron revolving in an atom from nucleus is
  2. The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
  3. A wooden stick 2 m long is floating on the surface of water. The surface tension
  4. P-type semiconductors are made by adding impurity element
  5. In old age arteries carrying blood in the human body become narrow resulting