When a body of mass m is taken from the surface of earth to a height and times earth radius?

1. mg 2R

2. 2 / 3 mgR

3. 3 mgR

4. 1 / 3 mgR

1.

In an experiment, four quantities a,b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively. Quantity P is calculated as follows:

P = 

A.

14 %

Here, P = 

= 14 %