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Jorge:)
They choose the ones who talk the most and could be seen as leaders
Choice A is the right answer! Buy at high altitude and sell at low altitude
Hope this helps :)
Answer:
1028 slits/mm
Explanation:
We are given that
Wavelength of light,
1nm=
n=1
We have to find the number of slits per mm are marked on the grating.
We know that
Using the formula
1m=
mm
Number of slits=
Number of slits=/mm
Number of slits=1028/mm
Hence, 1028 slits/mm are marked on the grating.