The mean distance from the Sun to the Earth is called: (1) Light year (2) Astronomical Unit (3) Parallactic Second (4) Angstrom

The mean distance from the Sun to the Earth is called: (1) Light year (2) Astronomical Unit (3) Parallactic Second (4) Angstrom
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(2) Astronomical Unit Explanation: The distance from the Earth to the Sun on average is about 149 million km which is often referred to as Astronomical Unit. 1 AU = 149 million km.
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A light year is a unit of – (1) time (2) distance (3) speed of light (4) intensity of light

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Light year is a unit of - (1) time (2) distance (3) light (4) intensity of light

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Light year is the unit of - (1) Frequency (2) Distance (3) Energy (4) Power

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Last Answer : answer:

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Last Answer : Angstrom is a very short unit of length. The Angstrom unit is used to express the wavelength of light , the distance or diameter between molecules , the distance between crystal or crystal layers , ... unit is named after the Swedish scientist Anders Jonas Angstrom ( Anders Jonas Å ngström) .

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