An object is place 2cm in front of a plane mirror.The mirror is moved 2cm towards the object. The distance between the posirions of the original and final images is?
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Answer:
The total distance between the position of original and final image is 4 cm.
Explanation:
We know that
For a plane mirror
The image distance = the object distance
an object is placed 20 cm in front of plane mirror then the image is formed at 20 cm behind the mirror.
If the mirror is moved 2 cm toward the object.
The distance between object and mirror
= 20-2 = 18cm.
The between image and mirror = 20-2=18 cm.
Therefore the total distance between the position of original and final image is
d =distancce distance of original image - distance of final image
d = 40- 36
d = 4 cm
Hence , the total distance between the position of the original and final image is 4 cm.
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