Question

The length of dipole antenna for a carrier wave of $5\times {10}^8$ Hz is

• A. 0.1 m
• B. 0.2 m
• C. 0.3 m
• D. 0.4 m

Answer 1

The correct option is C 0.3 m

$L=\frac{\lambda }{2}=\frac{C}{v\times 2}=\frac{3\times {10}^8}{(5\times {10}^8)}=\frac{3}{10}=0.3m$