Physics · Optics - Sign Convention
According to the Cartesian sign convention, the object distance (u) is taken as:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Zero for all mirrors
- 2Negative when the object is real✓
- 3Positive for all types of objects
- 4Positive when the object is real
Correct answer
Negative when the object is real
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