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Grade: 7
        The distance between davids image and mirror is 4m what is the distance between david and his image if he moves 2m away from the mirror?
one year ago

Answers : (1)

Arun
21041 Points
							
 

In the case of a plane mirror, the distance between the object and the mirror (d1) is same as the distance between the image and the mirror (d2).

1356_88600_Image 1.jpg

Given,

Distance between the image and David = d1 +  d2 = 4 m

Therefore, d1 = d2 = 2 m

If David moves 2 m away from the mirror, then d1 = 2 + 2 = 4 m

Again, d1 = d2 = 4 m

Therefore, the distance between David and his image is d1 + d2 = 4 + 4 = 8 m.

Regards

Arun (askIITians forum expert)

one year ago
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