Question

Define light year? in student of 11th class or others ​

Answer 1

Explanation:

Light year is the unit of distance. Light travels at a speed of 3, 00,000 km per second. So 10 trillion km is the distance covered by light in one year. Light year is a unit of distance not time. A light year is the distance traveled by light in 365.25 days.

Answer 2

Light Year is a unit to measure large distances.For example some alpha star is 2.5Billion Light Years away from.When we try to understand what does it mean physically.It comes out that, Light Year is basically the distance that Light(C) takes to cover in one year.

$\sf \purple{ conversions : }$

$\red{ {\tt1 \: light \: year} = \blue{ \tt 9.4 \times {10}^{12} \: kilometers}}$

$\red {\tt1 \: light \: year = \blue{\tt 9.4 \times { 10}^{15} \: meters}}$

$\red{ {\tt1 \: light \: year} = \blue{ \tt9.4 \times {10}^{17} \: centimeters}}$

$\orange{ \bf hope \: this \: helps...}$