Question

Describe ☺️

Light Year

Angstrom

Astronomical Unit​

Answer 1

Explanation:

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* Light year-- It is the unit of distance.It is equal to the distance travelled by light in one year.

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* Angstrom-- Angstrom(A) is the unit of length in which the wavelength of light is expressed.

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* Astronomical Unit:-- The average distance between the earth and the sun is called Astronomical unit.

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Answer 2

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Light Year

• It is unit of distance for measuring long vast distances.
• It is distance travelled by light in one year
• 1 light year = 9.4 × 10¹⁵ meters

Angstrom

• It is unit of distance used for measuring very small microscopic distances
• Symbol of Angstrom is Å
• 1 Angstrom = 1/10¹⁰ metres

Astronomical unit

• It is average distance between Earth and sun.
• As earth revolves the distance also changes
• The average distance is 150 million km.

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...Hope it helps....