Question

व्हाट इज डिस्पर्सिव पावर ऑफ प्लेन ट्रांसमिशन ग्रेटिंग​

Answer 1

Answer:-

The dispersive power of a grating is defined the ratio of the difference in angle of diffraction of any two neighbouring spectral lines to the diffraction in the wavelength between the two spectral lines.

It is expressed as dθ/dλ

We know (a+b) sinθ = nλ

Differentiate with respect to λ

[(a+b)cosθ] dθ/dλ=n

dθ/dλ= n / [(a+b)cosθ] dispersive power of grating

hope it will help you....

Answer 2

Answer:-

The dispersive power of a grating is defined the ratio of the difference in angle of diffraction of any two neighbouring spectral lines to the diffraction in the wavelength between the two spectral lines.

It is expressed as dθ/dλ

We know (a+b) sinθ = nλ

Differentiate with respect to λ

[(a+b)cosθ] dθ/dλ=n

dθ/dλ= n / [(a+b)cosθ] dispersive power of grating

hope it will help you....