Question

The distance of the sun from the earth is 1.496* 10^11. IF the angular diameter of the sun is 2000" find the diameter of the Sun

Answer 1

Explanation:

l/r=theta

where theta is in radians

2000"=4.85*10^-6*2000 rad

=9.70*10^-3 rad

so,

l/1.496*10^11=9.70*10^-3 rad

l=1.496*10^11*9.70*10^-3 m

l=1451120000 m

l=1451120 km