Q1
What is the velocity at which the light travels?
Light travels at a velocity of about 300,000 kilometres (km) per second.
Q2
At what distance is the sun from the earth?
The Sun is 149.6 million kilometres away from the Earth.
Q3
What is the value of one light year when expressed in kilometres?
One light year = 9.4607 × 10^12 km.
Q4
Can the age of the celestial body be determined using a light year?
Yes.
Q5
What is the value of one light year in Astronomical unit
One light-year is the Astronomical unit = 63241 au.
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