Answer to Question #90242 in Astronomy | Astrophysics for Shivam Nishad

Question

Express the radius of the Earth in unit of solar radius. (Radius of the earth is 6.4 x 10^6m).

Answer 1

Let's express the radius of the Earth in unit of solar radius (1 solar radius is equal to $6.96 \cdot 10^8 m$):

$$R_{Earth} = 6.4 \cdot 10^6 m = 6.4 \cdot 10^6 m \cdot (\dfrac{1R_{\odot}}{6.96 \cdot 10^8 m }) = 0.009 R_{\odot}.$$

Answer:

$R_{Earth} = 0.009 R_{\odot}.$