Question

* a diffraction grating is optically equivalent vto a multiple slit system in which the number of slit, N is typically
A. 15/cm
B. 15000/cm
C. 150000/cm
D. 150/cm​

Answer 1

Explanation:

15 cm 15000 cm 150000 150 cm 60000000

Answer 2

The correct answer is 5000/cm.

At the point when there is a need to isolate light of various frequencies with a high goal, then, at that point, a diffraction grating is most frequently the instrument of decision. This "super crystal" part of the diffraction grinding prompts application for estimating nuclear spectra in both lab instruments and telescopes. Countless equal, firmly dispersed cuts comprise a diffraction grating. The condition for most extreme force is equivalent to that for the twofold cut or various cuts, however with an enormous number of cuts the power greatest is exceptionally sharp and limited, giving the high goal to spectroscopic applications. The pinnacle forces are additionally a lot higher for the grinding than for the twofold cut.