Lateral Displacement
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Q. ′n′ transparent slabs of refractive index 1.5 each having thickness 1 cm, 2 cm, ...n cm are arranged one over the other. A point object is seen through this combination from top with perpendicular light. If the shift of the object by combination is 5 cm. Then the value of ′n′ is
Q. Two parallel rays are travelling in a medium of refractive index μ1=43. One of the rays passes through a parallel glass slab of thickness t and refractive index μ2=32. The path difference between the two rays due to the glass slab will be
- t8
- 4t3
- 3t2
- t6
Q. A beam of light is converging towards a point I on a screen. A plane glass plate whose thickness in the direction of the beam = t, refractive index =μ , is introduced in the path of the beam. The convergence point is shifted by
Q.
A diverging beam of light from a point source S having divergence angle a, falls symmetrically on a glass slab as shown. The angles of incidence of the two extreme rays are equal. If the thickness of the glass slab is t and the refractive index n, then the divergence angle of the emergent beam is
Zero
- a