Express the average distance of earth from the sun in (i) light year (ii) per sec.

Explanation

Average distance of earth from the
sun, `r = 1AU, = 1.496xx10^(11)m`
As `1ly = 9..46xx10^(15)m and`
1 par sec ` = 3.1 xx10^(16)m`
`:. r= (1.496xx10^(11)ly)/(9.46xx10^(15)) = 1.58xx10^(-5)ly`
`"Again", r = (1.496xx10^(11))/(3.1xx10^(16))par sec`
`=4.8xx10^(-6) par sec.