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Wave Optics

Question

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A radio can tune to any station in the 7.5 MHz to 12 MHz band. What is the corresponding wavelength band?

Solution

Given, frequency bands are 7.5 MHz and 12 MHz.

Wavelength, λ_{1} = \frac{3 \times 10^{8}}{7.5 \times 10^{6}} = 40 m W a v e length, λ_{2} = \frac{3 \times 10^{8}}{12 \times 10^{6}} = 25 m

The corresponding wavelength band is 40 m - 25 m.

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