Wave Optics

Column I shows four situations of standard Young’s double slit arrangement with the screen placed far away from the slits and In each of these cases and where is the wavlength of the light used. In the cases and a transparent sheet of refractive index and thickness is pasted on slit The thicknesses of the sheets are different in different cases. The phase difference between the light waves reaching a point on the screen from the two slits is denoted by and the intensity by Match each situation given in Column I with the statement(s) in Column II valid for the sitaution

Column I |
Column II |
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(A) | (p) | ||

(B) | $(\mu -1)t=\frac{\lambda}{4}$ | (q) | |

(C) | $(\mu -1)t=\frac{\lambda}{2}$ | (r) | |

(D) | $(\mu -1)t=\frac{3\lambda}{4}$ | (s) | |

(t) |