predict the sign convention rules while using the mirror formula
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Mirror formula : 1/f=1/v+1/u
...... You need to remember that the focal length,
1) of a concave mirror is negative
2)of a convex mirror is positive
........... Object distance is always negative............
Image distance is negative for all real images
And it is positive for all virtual images.
...... You need to remember that the focal length,
1) of a concave mirror is negative
2)of a convex mirror is positive
........... Object distance is always negative............
Image distance is negative for all real images
And it is positive for all virtual images.
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