The distance that light travels in a year, that is about 9.46 trillion kilometers is called as

One light year

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Two light year

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Three light year

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None of these

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Solution

The correct option is A One light year
A light year is a unit of distance. The distance light travels in one year is known as light year.
The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres (9.46 x 10¹²km) or 5.88 trillion miles (5.88 x 10¹² mi)

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Similar questions

Q. A light year is the distance travelled by light in one year. How many kilometers does light travel in a year assuming speed of light is

3 \times 10^{8} m s^{- 1}

Q. I read the definition of light year as the distance travelled by light in free space in one year is called light year. Is this correct or not?

A light year is the distance that light can travel in one year.
$1$ light year $= 9, 460, 000, 000, 000 k m .$
(a) Express one light year in scientific notation.
(b) The average distance between Earth and Sun is $1.496 \times 10^{8} k m .$ Is the distance between earth and Sun greater than, less than or equal to one light year?

Q. The distance travelled by light in one year is called as ___.

Q. Assertion :A light-year is a distance that light travels with velocity of

3 \times 10^{8}

m s^{- 1}

in one year. Reason: Light year is the unit for measuring time.

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