Physical World and Measurement

How many metres in one parsec

1 parsec = 3.08 x 10¹⁶ m Explanation A parsec is an astronomical term for measuring distance in space. A…

How many metres in one light year

1 light year = 9.46 x 10¹⁵ m Explanation Distance that light travels with velocity of 3 x 10⁸ m/s…

How many metres in one Astronomical unit

1 Astronomical Unit = 1.496 x 10¹¹ m Explanation Average distance of the Sun from the Earth

How many metres in one Angstrom

1 angstrom (A) = 10⁻¹⁰ m Explanation Used to measure wavelengths of light. The visible-light spectrum extends from approximately 7700…

How many seconds in 1 Year

1 year = 365.25 days = 3.156 x 10⁷ secs Explanation One Year is the time taken by the earth…