question_answer

  The spring balance shown in the following diagram is used to measure the weight of a given solid. What is the weight of solid?

Answer:

   The spring balance given in the question is incorrect, because with no weight its reading is not zero. Least count of the balance (25 g are represented by10 division) Value of 1 division = 2.5 g                     With no weight the pointer is at 4th division, So,               error = 4 division                   = 4 x 2.5 g = 10g Weight of the solid = Reading with solid ? Error