Two coherent light sources A and B are at a distance `3lambda` from each other `(lambda`=wavelength)The distances from A on the X-axis at which the interference is constructive are

An inteference is observed due to two coherent sources A and B separated by a distance 4lambda along Y-axis, where lambda is the wavelength of light. A detector 'D' is moved alog the positive X-axis. Find the totla number of maxima observe on the X-axis excluding the points x =0 and x = oo ?

If two coherent source are placed at a distance 3lambda from each other, symmetric to the centre of the circel as shown in figure, Find thenumber of fringes shown on the screen, placed along the circumference ?

Two coherent light sources S_1 and S_2 (lambda=6000Å) are 1mm apart from each other. The screen is placed at a distance of 25cm from the sources. The width of the fringes on the screen should be

Two coherent light sources S_1 and S_2 (lambda=6000Å) are 1mm apart from each other. The screen is placed at a distance of 25cm from the sources. The width of the fringes on the screen should be

An interference is observed due to two coherent sources separated by a distance 5lambda along Y-axis, where lambda is the wavelength of light A detector D is moved along the positive X -axis The number of point on the X-axis excluding the points x=0 and x=infty at which resultant intensity will be maximum are

An interference is observed due to two coherent sources separated by a distance 5lambda along Y-axis, where lambda is the wavelength of light A detector D is moved along the positive X -axis The number of point on the X-axis excluding the points x=0 and x=infty at which resultant intensity will be maximum are

Two monochromatic and coherent point sources of light are placed at a certain distance from each other in the horizontal plane. The locus of all those points in the horizontal plane which have constructive interference will be-

Two monochromatic and coherent point sources of light are placed at a certain distance from each other in the horizontal plane. The locus of all thos points in the horizontal plane which have constructive interference will be-