In Kerala state syllabus physics exam for the question derive an expression for lens makers formula I didn't draw the diagram but derived it, will i get full 3 marks or not?

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In Kerala state syllabus physics exam for the question derive an expression for lens makers formula I didn't draw the diagram but derived it, will i get full 3 marks or not?

Sandra 7th Mar, 2026

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Answer (1)

Anapally Rajesh 10th Mar, 2026

In Physics, a derivation is considered incomplete without a ray diagram because the diagram defines the sign conventions that you use in your equations. You may not receive full marks.

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