Question

calculate the average density of the earth considering it to be a perfect sphere.​

Answer 1

Explanation:

Correct option is

B

4πGR3g

The gravitational constant g is given as:

g=R2GMorM=Gg×R2⇒Density D=volumemass=G×Veg×R2

(Where Ve is the volume of the earth )

D=G×34πR3g×R2=4πGR3g.

Hence, the average density of the earth in terms of g, G and R is 4πGR3g.