The fringe width for red colour as compared to that for violet colour is approximately
Important Questions on Wave Optics
Using monochromatic light of wavelength , an experimentalist sets up the Young's double slit experiment in three ways as shown.
If she observes that , the wavelength of light used is :
A double slit setup is shown in the figure. One of the slits is in medium of refractive index . The other slit is at the interface of this medium with another medium of refractive index . The line joining the slits is perpendicular to the interface and the distance between the slits is . The slit widths are much smaller than . A monochromatic parallel beam of light is incident on the slits from medium . A detector is placed in medium at a large distance from the slits, and at an angle from the line joining them, so that equals the angle of refraction of the beam. Consider two approximately parallel rays from the slits received by the detector.
Which of the following statement(s) is(are) correct?