Total amount of energy would remain constant according to law of conservation of energy. i.e., 50 Joules
In short, Your Answer would be Option C) <span>50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion.
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Constantine I helped to socially and politically unify the early byzantine empire by tolerating and even promoting christianity.
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.