Home
Class 11
PHYSICS
The Sun's angular diameter is measured t...

The Sun's angular diameter is measured to be 1920". The distance D of the Sun from the Earth is `1.496xx109^(11)` m. What is the diameter of the Sun ?

Text Solution

Verified by Experts

Sun.s angular diameter `alpha=1920..`
`" "=1920 times 4.85 times 10^(-6)rad`
`" "=9.31 times 10^(-3) rad`
Sun.s diameter `d=alpha`
`D=(9.31 times 10^(-3)) times (1.496 times 10^(11))m`
`" "=1.39 times 10^(9)m`.
Promotional Banner

Similar Questions

Explore conceptually related problems

The earth receives at its surface radiation from the sun at the rate of 1400" Wm"^(-2) The distance of the centre of the sun from the surface of the earth is 1.5xx10^(11) m and the radius of the sun is 7xx10^(8) m. Treating the sun as a black body, it follows from the above data that its surface temperature is ........K

A saturn year is 29.5 times the earth year. How far is the saturn from the sun if the earth is 1.50 xx 10^(8) Km away from the sun ?

A Saturn year is 29.5 times the earth year. How far is the Saturn from the sun if the earth is 1.5xx10^8 km away from the sun?

The period T and mean distance R of a planet from the sun are related by