In the figure shown if a parallel beam of white light is incident on the plane of the slits then the distance of the white spot on the screen from O is [Assume `lt lt D, lambda lt lt d`]

In figure, if a parallel beam of white light is incident on the plane of the slit, then the distance of the nearest white spot on the screen form O is [assume d lt lt D, lambda lt lt D ]

In figure, if a parallel beam of white light is incident on the plane of the slit, then the distance of the nearest white spot on the screen form O is [assume d lt lt D, lambda lt lt D ]

In figure, if a parallel beam of white light is incident on the plane of the slit, then the distance of the nearest white spot on the screen form O is [assume d lt lt D, lambda lt lt D ]

In figure, if a parallel beam of white light is incident on the plane of the slit, then the distance of the nearest white spot on the screen form O is [assume d lt lt D, lambda lt lt D ]

In the figure , if a parallel beam of white light is incident on the plane of the slits S_1 and S_2 then the distance of the nearest white spot on the screen from O is [ Assume D gtgtd, d gtgtlamda ]

In the figure , if a parallel beam of white light is incident on the plane of the slits S_1 and S_2 then the distance of the nearest white spot on the screen from O is [ Assume D gtgtd, d gtgtlamda ]

In the figure shown S is the saurce of white light kept at a distance x_(0) frorn the plane of the slits. The source moves with a constant specd u towards the slits on the line perpendicular to the plane of the slits and passing through the slit S_(1) . Find the instanteneous velocity (magnituce and direction). of the central maxima at time t having range 0 le t lt lt (x_(0)-d)/(u) . Assume that D gt gt d .

The refractive index of light in glass varies with its wavelength according to equation mu (lambda) = a+ (b)/(lambda^(2)) where a and b are positive constants. A nearly monochromatic parallel beam of light is incident on a thin convex lens as shown. The wavelength of incident light is lambda_(0) +-Delta lambda where Delta lambda lt lt lambda_(0) . The light gets focused on the principal axis of the lens over a region AB. If the focal length of the lens for a light of wavelength lambda_(0) is f_(0) , find the spread AB.