The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.

y = StartFraction 3 x 10 Superscript 8 Baseline Over x EndFraction

What is the wavelength for radio waves with frequency 3 × 109?

a
3 × 1017 m

b
9 × 1017 m

c
1 × 10–1 m

d
3 × 10–1 m

It is B

Step-by-step explanation:

Edge 2021

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: