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Two plane mirror are placed paralled to each other at a seperation of 6m as shown in figure. Find the (i) number of images of the object O, (ii) seperation between 5th image.

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Given, mirrors are placed parallel to each other. Therefore
(i) Number of images formed=`oo`
(ii) Distance between 5th images, `I_(5)I'_(5)=2xx5(x+y)`
where,x=6-2=4m`rArr` y=2m
`rArr` `I_(5)I'_(5)`=10(4+2)=60m
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