A radio can tune to any station in 7.5 MHz to 12 MHz band. The corresponding wavelength band is:
Answer & explanation
Correct answer: option 1
Here, $v_1$ = 7.5 MHz , $v_2$ = 12 MHz
∴ $\lambda_1=\frac{c}{v_1}=\frac{3 × 10^8}{7.5 × 10^6}$ = 40 m and $\lambda_2=\frac{c}{v_2}=\frac{3 × 10^8}{12 × 10^6}$ = 25 m