The thickness of the plastic in plastic bags is about 0.002 mm. How many wavelengths of blue light is this?

Question

The thickness of the plastic in plastic bags is about 0.002 mm. How many wavelengths of blue light is this? (Assume a wavelength of 475 nm for blue light.)
_____________wavelengths

Answer 1

What you need to know is how a milimeter relates to a nanometer to solve your question.

1mm = 1,000,000nm

Therefore .001mm = 1,000nm and .002mm = 2,000nm

The rest should be easy for you.

2,000 / 475 =

Answer 2

you ought to hunt for the electromagnetic spectrum. many times it incredibly is from purple at seven-hundred nm to violet at 4 hundred nm. 0.001 mm = one million,000 nm if purple has a wavelength of seven-hundred nm, then the plastic bag has in elementary terms a pair of million.4-one million.5 wavelength for purple mild

Answer 3

Blue light ranges from 400 nm to 480 nm . Where the plastic bag thickness is .oo2mm which is about 2000nm’s so ….
.000002/.000000400 = 5 and .000002/.000000480 = 4.16
so x being the thickness...
4.16 < x < 5

Answer 4

Just be careful with the units ...
1nm = 10^-9 meter; 1mm=10^-3 meter

N = .002mm / 475nm
= .002x10^6 nm / 475nm
~ 4.2