Balika Vidyalaya2018ESSAYIOTA.pdfRathnavali Balika Vidya|aya 1) A triple beam balance is shown in...
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Balika Vidyalaya2018ESSAYIOTA.pdfRathnavali Balika Vidya|aya 1) A triple beam balance is shown in the diagram. The system is smoothly pivoted at point 'O'. Three mp, rnQ, mR adjustable