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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?

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?

Grade:7

1 Answers

Arun
25763 Points
3 years ago
 

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)

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