Question

State the order of magnitude of the following :
( a) Acceleration due to gravity at the pole is ‘g’ = 0.98
m /s2.​

Answer 1

Explanation:

Order of the magnitude is given by the power of 10 in any quantity.

(a) Acceleration due to gravity,g=9.81m/s^2

so, order is 10^0

(b) Gravitational constant, G=6.67×10^-11 Nm^2 kg^-1

so, order is 10^-11

(c) The period of rotation of the earth about its own axis is

So, order is 23hrs56mins4secs=86164sec

8.61∗10^4sec