Does it?Arup Biswas said:When the central and the 1st maxima has same activity to produce constructive interference( as in same phase).
Which rays?Arup Biswas said:the rays there
The subsidiary maximum, also known as a secondary maximum, is a result of interference between light waves passing through a single slit. The intensity of the light at this point is lower because it is a point of destructive interference, where the peaks of one wave cancel out the troughs of another. This is in contrast to the central maximum, where constructive interference leads to a higher intensity of light.
The width of the slit has a direct impact on the intensity of the subsidiary maximum. As the slit becomes narrower, the wavelength of the light becomes larger in comparison, leading to a decrease in the angle of diffraction. This results in a wider central maximum and narrower subsidiary maxima, resulting in a decrease in intensity at the subsidiary maximum.
The intensity of the subsidiary maximum decreases as the distance from the slit increases. This is because the diffraction pattern spreads out as the distance increases, resulting in a decrease in the intensity of the subsidiary maximum. In contrast, the central maximum remains constant regardless of the distance from the slit.
The intensity of the subsidiary maximum is inversely proportional to the wavelength of light. This means that as the wavelength of light increases, the distance between the central maximum and the subsidiary maximum decreases, resulting in a decrease in the intensity at the subsidiary maximum.
The intensity of the subsidiary maximum cannot be increased without altering the setup of the experiment. However, the intensity of the central maximum can be increased by using a narrower slit or a light source with a shorter wavelength.