Give the sign convention in concave and convex mirrors.
By BYJU'S Exam Prep
Updated on: September 13th, 2023
Sign convention in a concave mirror
- As the object is always placed in front of the mirror, the sign of the object is negative.
- The focus and center of curvature lie in front of the concave mirror, the sign of focal length and radius of curvature is negative in the concave mirror.
- If an image is formed in front of the mirror, the distance of the image is negative whereas if the image is formed behind the mirror, the distance of the image is positive.
- In the case of an erect image, the height of the image is positive whereas, for an inverted image, the height is negative.
Table of content
Sign convention in a convex mirror
- As the object is always placed in front of the mirror, the sign of the object is negative.
- The focus and center of curvature lie behind the convex mirror, and the sign of focal length and radius of curvature is positive in the convex mirror.
- If an image is formed behind the mirror, the distance of the image is positive.
- In the case of an erect image, the height of the image is positive in a convex mirror.
Therefore, the sign convention in concave and convex mirrors is mentioned above.
Summary:
Give the sign convention in concave and convex mirrors.
The sign convention in concave and convex mirrors is mentioned above.
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