Two source are placed on x-axis at a separation `d = 3lambda`. An observer starts moving from A on a circular track of radius R `(R gt gt d)`. How many bright points and dark points will he observer?
Find the angular positions of maxima and minima.
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Two sources of sound are placed along the diameter of a circle of radius R(R gt gt 41) . How many minima will be heard as one moves along the perimeter of circle.

Two sources of sound are placed along the diameter of a circle of radius R(R gt gt 41) . How many minima will be heard as one moves along the perimeter of circle.

Two monochromatic (wavelength =a//5 ) and coherent sources of electromagnetic waves are placed on the x-axis at the point (2a,0) and (-a,0) . A detector moves in a circle of radius R(gt gt 2a) whose centre is at te origin. The number of maximas detected during one circular revolution by the deterctor are -

Two monochromatic (wavelength =a//5 ) and coherent sources of electromagnetic waves are placed on the x-axis at the point (2a,0) and (-a,0) . A detector moves in a circle of radius R(gt gt 2a) whose centre is at te origin. The number of maximas detected during one circular revolution by the deterctor are -

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

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

Two monochromatic (wavelength = a/5) and coherent sources of electromagnetic waves are placed on the x-axis at the points (2a,0) and (-a,0). A detector moves in a circle of radius R(gtgt2a) whose centre is at the origin. The number of maxima detected during one circular revolution by the detector are

In Fig. 3.12 a particle moves along a circular parth of radius r. It starts from point A and moves anticlockwise. Find the distance travelled by the particle as it : moves A to D