The length, breadth and height of a rectangular block of wood were measured to be `l= 12.13+-0.02cm, b= 8.16 +- 0.01 cm, h=3.46 +- 0.01 cm`. Determine the precentage error in the volume of the block upto two significant figures.

The length, breadth and thickness of a block' are measured as 125.6 cm, 6.5 cm and 0.23 cm respectively. Which measurement is least accurate ?

When measured from outside,the length,breadth and height of a top-open metal box of thickness 0.5cm.were found to be 10cm.,9cm and 2.5cm respectively.Find the volume of the metal needed to make the box and the capacity of the box as well.

The length , breadth , and thickness of a sheet are respectively 4.234 m , 1.005 m, and 2.01 cm find the area and the volume of the sheet to correct number of significant figure

If A = (12.0 +-0.1) cm and B = (8.5 +- 0.5) cm. find: A-B

The external and internal diameters of a hollow cylinder are measured to be (4 .23 + 0.01) cm and (3.89 ± 0.01.) cm. The thickness of the wall of the cylinder is

The length and breadth of a rectangle are (5.7 +-0.1) cm and (3.4+- 0.2) cm. Calculate area of the rectangle‘with error limits.

The opposite face of a cubic block of iron of cross-section 8 sq.cm are kept in touch with steam and melting ice.Determine the quantity of ice melted at the end of 5 minutes (K=0.2 CGS units).

A pen stand made of wood is in the shape of a cuboid with four concial depressions to hold pens. The dimensions of the cuboid are 15 cm by 10 cm by 3.5 cm. The radius of each of the depressions is 0.5 cm and the depth is 1.4 cm. Find the volume of wood in the entire stand ( see Fig. 13.16).