Question

In a single-slit Fraunhofer diffraction, the intensity of the third diffraction maxima, as compared to that of the second diffraction maxima, is reduced by​

Answer 1

Answer:

The central maximum is due to constructive interference of secondary wavelets from all parts of the slit. With increase in n (order of spectrum), the wavelets from lesser and lesser parts of the slit produce constructive interferecne to form secondary maxima. That is why the intensity decreaes.

Answer 2

Answer:

The central maximum is due to constructive interference of secondary wavelets from all parts of the slit. With increase in n (order of spectrum), the wavelets from lesser and lesser parts of the slit produce constructive interference to form secondary maxima. That is why the intensity decreases.

mark me as brainliest..