Hi I really need help you’ll get 100 if you answer and I’ll give u brainliest! question is pictured

solution given:

A=l w

now

dividing both side by w ,we get

=

l =

is your answer

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: