an object is placed 10 cm in front of a plane mirror. where is the image formed ?how far is it from the mirror
Big ol' bootyhole
20cm
the answer is 20 cm
A 5 cm tall object is placed 10 cm in front of an unknown mirror. A virtual image is formed 3.5 cm behind the mirror
(a) Calculate the focal length of the mirror
To find the location and distance of the image formed by a plane mirror, you can use the laws of reflection.
1. Law of Reflection: The angle of incidence (θi) is equal to the angle of reflection (θr) with respect to the normal line at the point of incidence.
In this case, the object is placed 10 cm in front of the mirror. The distance between the object and the mirror is the object distance (do).
2. Object Distance (do): The distance between the object and the mirror.
Given information:
do = 10 cm
The image formed by a plane mirror is virtual, meaning it appears to be behind the mirror. The image distance (di) will be equal to the object distance (do).
3. Image Distance (di): The distance between the image and the mirror.
Therefore,
di = do = 10 cm
In conclusion, the image formed by the plane mirror will be virtual, located 10 cm behind the mirror.