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  4. A radio can tune to any station in 6 MHz to 10 MHz band. The value of corresponding wavelength bandwidth will be :

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Q. A radio can tune to any station in $6\, MHz$ to $10\, MHz$ band. The value of corresponding wavelength bandwidth will be :

JEE MainJEE Main 2022Communication Systems

Solution:

Given: Frequency $f_1=6\, MHz$
Frequency $f_2=10\, MHz$
$ \lambda_1=\frac{ c }{ f _1}$
$ \lambda_2=\frac{ c }{ f _2}$
Wavelength bandwidth $=\lambda_2-\lambda_1=20 \, m$