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david is observing his image in a plane mirror and his image is 4m if he moves 1m towards the mirror then calculate the distance between david and his mirror

david is observing his image in a plane mirror and his image is 4m if he moves 1m towards the mirror then calculate the distance between david and his mirror

Grade:10

1 Answers

Arun
25768 Points
2 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 mirror and David’s image, d2 = 4 m

Therefore, d1 = d2 = 4 m

If David moves 1 m towards the mirror, then d1 = 4 − 1 = 3 m

Again, d1 = d2 = 3 m

Therefore, the distance between David and his image is d1 + d2 = 3 + 3 = 6 m.

 

Regards

Arun

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