Two radio antennas separated by 300 m as shown in figure simultaneously broadcast indentical singals at the same wavelength. A radio in a car traveling due north receives the signals. (a) If the car is at the position of the second maximum, what is the wavelength of the signals? (b) How much farther must the car travel to encounter the next mininum in reception? (Note: Do not use the small- angle approximation in this problem.)

Options

A. orient the receiving antenna horizontally,north-south
B. orient the receiving antenna horizontally, east-west
C. use a vertical receiving antenna
D. Move to a town farther to the east or to the west,Use a magnetic dipole antenna instead of an electric dipole entenna.

Answer

D