![7.00 \cdot 10^{-7} m - 1\cdot 10^{-3} m](/tex.php?f=7.00 \cdot 10^{-7} m - 1\cdot 10^{-3} m)
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:
![1 nm = 10^{-9} m\\1 mm = 10^{-3} m](/tex.php?f=1 nm = 10^{-9} m\\1 mm = 10^{-3} m)
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:
![1 mm = 1 \cdot 10^{-3} m](/tex.php?f=1 mm = 1 \cdot 10^{-3} m)
so, the range of wavelength of infrared radiation is:
![7.00 \cdot 10^{-7} m - 1\cdot 10^{-3} m](/tex.php?f=7.00 \cdot 10^{-7} m - 1\cdot 10^{-3} m)