Find the apparednt distance between the observer and the object shwon in the figure and shift in the position of object.

The distance between the ends of an object

Find the apparent depth of object of the object seen by observe A (in the figure shown)

An observer looks at an object kept at a distance 30 cm in air. If a rectangular glass plate ( mu =1.5) is placed between the observer and the object with its thick-ness along the line of observation, the object appears to the observer to be at a distance 25 cm. Find the thickness of glass plate. Position of the glass plate is now shifted (i) from object towards observers (ii) from observer towards the object How does it change the apparent position of the object as seen by the observer?

An object is at a distance 25 cm in front of a plane mirror. The mirror is shifted 5 cm away from the object. Find: (i) the new distance between theobject ad its image, and (ii) the distance between the two positions of the image.

An object is placed on the principle axis of a concave mirror of focal length 10cm at a distance of 21cm from it. A glass slab is placed between the mirror and the object as shown in figure. Find the distance of final image formed by the mirror.

An object is placed on the principle axis of a concave mirror of focal length 10cm at a distance of 21cm from it. A glass slab is placed between the mirror and the object as shown in figure. Find the distance of final image formed by the mirror.