Please solve this problem 26
Q.26. You are given two spring balances P and Q. Balance P has a range of 0 to 250 g and a least count of 2.5 g, while balance Q has a range of 0 to 1000 g and a least count of 10 g. Which of the spring balance is suitable to measure the mass of a cube which has each side 4 cm and density 6 gm/ c m 3 ?

Dear Student,


Volume of cube = (edge length)3=(4 cm)3 = 64 cm3Density=6 g/cm3Mass = Volume ×Density          =6×64          =384 gHence, we need a spring balance that has a range from 8 to 385 gSince range of spring balance P is less than 385, so the correct answer is QQ is suitable to measure mass of cube of side 4cm. 

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