Coherent Sources

Two coherent sources produce waves of different intensities which interfere. A fter interference, the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio :

Two coherent sources separated by distance d are radiating in phase having wavelength lambda . A detector moves in a big circle around the two sources in the plane of the two sources. The angular position of n=4 interference maxima is given as

The two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 50% by reducing its width then the intensity of light at the same point will be

The two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 50% by reducing its width then the intensity of light at the same point will be

Light from two coherent sources of same amplitude and same wavelength illuminates the screen. The intensity of the central maximum is I. If the sources were noncoherent, the intensity at the same point will be

Two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If the intensity of one of the sources is reduced by 36% reducing its width, then the intensity of light at the same point will be

Light from two coherent sources of the same amplitude A and wavelength lambda illuminates the screen. The intensity of the central maximum is I_(0) . If the sources were incoherent, the intensity at the same point will be

Two small angled transparent prisms (each or refracting angle A = 1^(@)) are so placed that their bases coincide, so that common base is BC. This device is called Fresnel's biprism and is used to obtain coherent sources of a point source S illuminated by monochromatic light of wavelength 6000 Å placed at a distance a = 20 cm. Calculate the separation between coherent sources. If a screen is placed at a distance b = 80 cm. from the device, what ist the finge which of fringes obtained (Refractive index of material of each prism = 1.5.)

When two coherent sources interact with each other, there will be production of alternate bright and dark fringes on the screen . Young's double-slit experiment domonstrates the idea of making two coherent sources. For better visibility, one has to choose proper amplitude for the sources. The phenomena is good enough to satisfy the conservation of energy principle. The pattern formed in YDSE is of uniform thickness and is nicely placed on a long distance screen. Law of convervation of energy is satisfied because

When two coherent sources interact with each other, there will be production of alternate bright and dark fringes on the screen . Young's double-slit experiment domonstrates the idea of making two coherent sources. For better visibility, one has to choose proper amplitude for the sources. The phenomena is good enough to satisfy the conservation of energy principle. The pattern formed in YDSE is of uniform thickness and is nicely placed on a long distance screen. For better visibility of fringe pattern