Rahul's height is 1.8 m. He stands in front of a large vertical plane mirror. If the distance of image from Rahul is 6m , how far is Rahul from the mirror?
A. 2m. B. 11m. C. 3m. D. 6m.
Please answer fast !
Answers
Answer:
3m
Explanation:
the distance between the object (Rahul) and mirror is same as the distance between the image and the mirror.distance between Rahul and image=6m.distance between Rahul and mirror=6/2=3
Answer:
The correct answer is A. 2m
Explanation:
Let the distance of Rahul from the replicate be 'x' meters. According to the reflect formula,
1/v + 1/u = 1/f
Where, v = distance of photo from the mirror, u = distance of object from the mirror, and f = focal size of the reflect (which is 1/2 the distance between the reflect and the image).
In this case, the photo distance (v) is given as 6m, and the object distance (u) is x meters. We can count on that the replicate is a airplane mirror, which has a focal length of infinity.
Plugging in the values, we get:
1/6 + 1/x = 0
Simplifying this equation, we get:
x = 2m
The distance of Rahul from the reflect is two meters (option A).
Hence,
The correct answer is A. 2m
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