The relationship between wave characteristics:

$\overline{){\mathbf{v}}{\mathbf{=}}{\mathbf{f}}{\mathbf{\lambda}}}$, where v is the propagation speed of the wave, f is the frequency, and λ is the wavelength.

**a.**

From the boxed equation, we have the wavelength as, λ = v/f

Two microwave frequencies are authorized for use in microwave ovens: 900 and 2560 MHz.

a. Calculate the wavelength of each

b. Which frequency would produce smaller hot spots in foods due to interference effects.

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