Answer :
To use a triple beam balance, first ensure it is calibrated to zero. Place the object to be weighed on the pan and adjust the sliding weights along the beams until the balance pointer aligns with the zero mark. Finally, add the values from each beam to obtain the total mass of the object.
A triple beam balance consists of a horizontal beam mounted on a fulcrum with three sliding weights on parallel beams. Before weighing, check that the balance is calibrated; the pointer should align with the zero mark. If it’s not, adjust the calibration screw until it does.
Next, place the object you want to weigh on the pan. Start by sliding the largest weight (usually 100 grams) until the balance begins to tip. Then, adjust the smaller weights (10 grams and 1 gram) to find a position where the pointer returns to the zero mark. The total mass is the sum of the values indicated by all three weights, providing an accurate measurement of the object's mass.
