Two differences masses are determined as `(23.7pm0.5)` g and `(17.6pm0.3)g`. What is the sum of their masses?

The sides of a rectance are (5.5 pm 0.1) cm and (3.5 pm 0.2) cm . Its perimeter is

The sides of a rectance are (5.5 pm 0.1) cm and (3.5 pm 0.2) cm . Its perimeter is

The mass of a beaker is (10.1 pm 0.1) g when empty and (17.3pm0.1) g when filled with a liquid. The mass of the liquid with possible limits of accuracy is

The mass of a beaker is (10.1 pm 0.1) g when empty and (17.3pm0.1) g when filled with a liquid. The mass of the liquid with possible limits of accuracy is

The external and internal diameters of a hollow cylinder are determined with vernier callipers and the results are recorded as 4.23 pm0.01 cm and 3.89pm0.01 cm. The thickness of the cylinder wall within the limits of error is

In a simple pendulum l=(100.0pm0.5) cm and t=(2.00pm0.01) sec. What is the percentage error in g?