The johnsons need to put up a fence, as shown in the picture. they have already measured two of the sides. find the length of the missing side of the farmyard (round to two decimal places).

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:

answer: c

step-by-step explanation

the five is the numerator