The figure shows a double slit experimental set up for observing interference fringes due to different interference component colours of white light. What would be the predominant colour of the fringes observed at the point
(i) O (the central point)
(ii) P. where, ?
(Here, λb is the wavelength of the blue colour).
Dear Student ,
White colour fringe is obtained at point O as all components colour wavelength undergo constructive interference fringe pattern .
In the second case the light of blue colour interfere destructively and hence this colour would subtract from white light .Thus yellow colour fringe would be obtained at P .
Hope this helps you .
Regards
White colour fringe is obtained at point O as all components colour wavelength undergo constructive interference fringe pattern .
In the second case the light of blue colour interfere destructively and hence this colour would subtract from white light .Thus yellow colour fringe would be obtained at P .
Hope this helps you .
Regards