Two rods have lengths measured as `(1.8 pm 0.2)`m and `(2.3 pm 0.1)`m. Calculate their combined length with error limits.

(a). Two plates have lengths measured as ( 1.9 +- 0.3) m and ( 3.5 +- 0.2)m . Calculate their combined length with error limits. (b) The initial and final temperatures of a liquid are measured to be 67.7 +- 0.2^(@) C and 76.3 +- 0.3^(@) C . Calculate the rise in temperature with error limits.

(a). Two plates have lengths measured as ( 1.9 +- 0.3) m and ( 3.5 +- 0.2)m . Calculate their combined length with error limits. (b) The initial and final temperatures of a liquid are measured to be 67.7 +- 0.2^(@) C and 76.3 +- 0.3^(@) C . Calculate the rise in temperature with error limits.

The lengths of the sides of a rectangle are (5.7 +- 0.2)cm and (3.2 +- 0.1) cm. Calculate the perimeter of rectangular with error limits.

The length of two rods are recorded as l_(1) = (25.2 pm 0.1) cm and l_(2) = (16.8 pm 0.1) cm . Find their combined length .

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

The length of two cylinders are measured to be l_1=(5.62_-^+0.01) cm and l_2=(4.34_-^+0.02) cm. Calculate difference in lengths with error limits.

The length and breadth of a rectangular lamina are measured to be (2.3 +- 0.2) cm (1.6 +- 0.1)cm. Calculate area of the lamina with error limits.

In the density measurement of a cube, the mass and edge length are measured as (10.00 pm 0.10) kg and (0.10 pm 0.01)m , respectively. The relative error in the measurement of density is:

The original length of wire is (153.7 pm 0.6) cm . It is streched to (155.3 pm 0.2) cm. Calculate the elongation in the wire with error limits.