Question

cartesian sign convention for optics note​

Answer 1

Explanation:

• If object is above x axis then its height will be positive and if it is below the axis then it will be negative....
• Objet distance is always taken as negative....
• if image is formed in side of object then it will be negative and if it is opposite to object side then it will be positive....

• consider everything in side of object will be negative...
• if image is formed below the axis then negative sign and vice versa.....

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