Given below are two statements : Statement I : Astronomical unit (Au), Parsec (Pc) and Light year (ly) are units for measuring astronomical distances. Statement II : Au

Question

Given below are two statements : Statement I : Astronomical unit (Au), Parsec (Pc) and Light year (ly) are units for measuring astronomical distances. Statement II : Au < Parsec (Pc) < ly In the light of the above statements, choose the most appropriate answer from the options given below:

TestHub · Accepted Answer

Astronomical unit denotes roughly the distance from Earth to the Sun. Parsec is a unit of length used to measure the large distances to astronomical objects outside the Solar System. A light-year is another large unit of length used to express astronomical distances.

The relation between these units are as follows:

$1 Parsec = 2 \times 10^{5} Au$

$1 Au = 1 .58 \times 10^{- 5} ly$

Thus, $1 Au < ly < Parsec$ .

Hence, Statements I is true but Statements II is false.

Physics - Unit & Dimension Question with Solution | TestHub

Options:

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