Question

If a microwave oven produces electromagnetic waves with a frequency of 2.30 ghz, what is their wavelength?

Answer 1

$\lambda = \frac{c}{\nu} = \frac{3 \cdot 10^8}{2.3 \cdot 10^9} = \frac{3}{23} \approx 0.130435 \approx 0.13 \ m.$

Answer 2

Answer: wavelength is $1.30 \times 10^8 nm.$

The frequency of the microwave is, f = 2.30 GHz.

To Find frequency use the formula:

$c=f$λ

Where, c is the speed of electromagnetic wave or light. f is the frequency, and λ is the wavelength of light.

Rearranging, $\lambda = \frac{c}{f}$

Plug in the values,

$\lambdam = \frac{3 \times 10^8 m/s}{2.30 GHz\frac{10^9 Hz}{1 GHz}}=0.130 m\frac{10^9 nm}{1 m} = 1.30 \times 10^8 nm.$