The two coherent sources of monochromatic light of wavelength `lambda` are located at a separation `lambda`. The two sources are placed on a horizontal line and screen is placed perpendicular to the line joining the sources. Find position of the farthest minima from the centre of the sources.

Two coherent point sources S_(1) and S_(2) vibrating in phase emit light of wavelength lambda . The separation between the sources is 2lambda . Consider a line passing through S_(2) and perpendicular to line S_(1) S_(2) . Find the position of farthest and nearest minima. .

Two coherent point sources S_(1) and S_(2) vibrating in phase emit light of wavelength lambda . The separation between the sources is 2lambda . Consider a line passing through S_(1) and perpendicular to line S_(1) S_(2) . Find the position of farthest and nearest minima. .

Two coherent point sources S_1 and S_2 emit light of wavelength lambda . The separation between sources is 2lambda . Consider a line passing through S_2 and perpendicular to the line S_(1)S_(2) . What is the smallest distance on this line from S_2 where a minimum of intensity occurs?

Two coherent point sources S_1 and S_2 emit light of wavelength lambda . The separation between sources is 2lambda . Consider a line passing through S_2 and perpendicular to the line S_(1)S_(2) . What is the smallest distance on this line from S_2 where a minimum of intensity occurs?

A monochromatic point source (S_(1)) is at a distance d from a screen. Another identical source (S_(2)) is at a large distance from the screen. The two sources are on a line which is perpendicular to the screen. Sources are coherent. What is the shape of interference fringes on the screen? (b) Three identical coherent sources are placed on a straight line with two neighbouring ones separated by a distance "d = 0.06 mm" . The sources produce monochromatic light of wavelength lambda" = 550.4 nm" . A line AB is located at a distance D = 2.50 m from the sources and is perpendicular to line joining the three sources. Intensity of light at P with any one of the sources switched on is I_(o) . Find the intensity when all three sources are switched on. Distance of point P from O is "y = 1.72 cm (see figure)"

Two light sources are coherent when

Two light sources are coherent when