The n transparent slabs of refractive index1.5 each having thickness 1cm, 2 cm,…to n cm are arranged one over another. A point object is seen through this combineation with near perpendicular light. If the shift of object by the combination is 1 cm, then find the value of n.

k transparent slabs are arranged one over another. The refractive indices of the slabs are g„ ...Ilk and the thicknesses are t_1, t_2, t_3............., t_k . An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place.

k transparent slabs are arranged one over another. The refractive indices of the slabs are g„ ...Ilk and the thicknesses are t_1, t_2, t_3............., t_k . An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place.

k transparent slabs are arranged one over another. The refractive indices of the slabs are g„ ...Ilk and the thicknesses are t_1, t_2, t_3............., t_k . An object is seen through this combination with nearly perpendicular light. Find the equivalent refractive index of the system which will allow the image to be formed at the same place.

A glass slab of thickness 3cm and refractive index 1.5 is placed in front of a concave mirror of focal length 20cm. Where should a point object be placed if it is to image on to itself?

Four transparent slabs having thickness t_(1)= 2cm, t_(2)= 4 cm, t_(3)= 3 cm" and "t_(4)= 5cm are introduced in one of the paths of light emitted by two narrow slits the ascending order of shift of the central fringe

A 20cm thick glass slab of refractive index 1.5 is kept in front of a plane mirror. Find the position of the image (relative to mirror) as seen by an observer through the glass slab when a point object is kept in air at a distance of 40 cm from the mirror.