Q&A When

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 = 

, error in P is

A.

14 %

Here, P = 

Therefore,


= 

= 
= 3 x1 + 2 x 2 + 3 +4 = 3 + 4 + 3 + 4

= 14 %

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