Q.9) You have a broken ruler without the zero mark. How should you use it for
measuring the length of a box?
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Answer:
take zero error into consiferation
Step-by-step explanation:
suppose take any other marking on scale you like
Then measure the length of box
Now to get actual reading just do final reading - initial reading !
suppose initial reading is 2 cm and final is 8 cm
now actual length of box = 8-2 = 6cm
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