The lengths l_(1) and l_(2) of two rods are recorded as (25.2+0.1) cm and (16.8+0.1) cm. To find the sum of the lengths of the rods.

The lengths l_(1) and l_(2) of two rods are recorded as (25.2+0.1) cm

1.	The lengths l_(1) and l_(2) of two rods are recorded as (25.2+0.1) cm and (16.8+0.1) cm. To find the sum of the lengths of the rods.
Answer» The error in the measuremnet is zero The error in the measurement is 0.2 The TOTAL length of the rods is (42.0+0.0) CM The total length of the two rods is (42.0 + 0.2)cm ANSWER :B::D