Question

A microwave oven operates at 2.10 ghz . what is the wavelength of the radiation produced by this appliance?

Answer 1

`\lambda = (c)/(\\u) = (3 \cdot 10^8)/(2.1 \cdot 10^9) = (1)/(7) \approx 0.142857 \approx 0.14 \ m.`

Answer 2

∆ = 0.143 m

Step-by-step explanation:

Using the information given above

Let f = frequency= 2.1 ×10^9 hz

Let c be the Speed of light = 3×10^8 m/s

Let ∆ be Wavelength which is unknown

∆ = c/f

= 3× 10^8/2.1 × 10^9

= 0.143 m