14. An object is placed at a distance of 25 cm in front of a plane mirror. The image distance will be *
Answers
Answer:
25 cm
If an object is placed at a distance of 25 cm then the image in the mirror will be at the same distance of 25 cm because the distance of the object and the image is at the equal distance from the mirror
Answer:
The object should be kept at 50 cm so that the size of image is equal to the size of object.
Explanation
If an object is placed at a distance of 25 cm then the image in the mirror will be at the same distance of 25 cm because the distance of the object and the image is at the equal distance from the mirror
To get an image of same size the object should be placed at the center of the curvature of a concave mirror.
Given,
focal length = 25 cm
As, centre of curvature = 2 x focal length
Therefore,
centre of curvature
= 2 x 25
= 50 cm
Hence, the object should be kept at 50 cm so that the size of image is equal to the size of object.
A mirror image (in a plane mirror) is a contemplated duplication of an item that looks nearly same, however is reversed inside the direction perpendicular to the mirror surface. As an optical impact it results from reflection off from substances consisting of a reflect or water. it's also a concept in geometry and can be used as a conceptualization procedure for 3-D systems.
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