What would be the distance between an object placed 20 cm away in front of a plane mirror and its image
Answers
Answer: The total distance between the positions of the original and final image is 4 cm.
Explanation:
We know that,
For plane mirror,
The image distance = - The object distance
An object is placed 20 cm in front of a plane mirror then the image is formed at 20 cm behind the mirror.
If the mirror is moved 2 cm toward the object.
The distance between object and mirror = 20-2 = 18 cm
The distance between image and mirror = 20-2 = 18 cm
Therefore, the total distance between the positions of the original and final image is
d = distance of the original image - distance of the final image
Hence, The total distance between the positions of the original and final image is 4 cm.
Answer:
20+20 = 40 cm
distance between an object placed 20 cm away in front of a plane mirror and its image is 40m
Explanation:As 20cm is front of mirror and 20 cm in the mirror
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