Question
Physics Question on communication systems
A radio can tune to any station in 7.5MHz to 12MHz band. The corresponding wavelength band is
A
25m−40m
B
10m−30m
C
20−40m
D
25m−35m
Answer
25m−40m
Explanation
Solution
Wavelength corresponding to 7.5MHz frequency λ1=υc=7.5×1063×108=40m Wavelength corresponding to 12MHz frequency λ2=12×1063×108=25m Corresponding to the given frequency bands, the wavelength band is 25m−40m.