Physics, asked by Nehyamasar6ubysethi, 1 year ago

resolving power of grating

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Answered by sourabhrana55
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The capacity of an optical instrument to show separate images of very closely placed two objects is called resolving power. The resolving power of a diffraction grating is defined as its ability to form separate diffraction maxima of two closely separated wave lengths.

The expression for resolving power of a grating can be obtained with the aid of Fig. 14.20.

 

Figure 14.20 Calculation of resolving power of a plane transmission granting

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