Q. 54.5( 11 Votes )

Define the unit in w

Answer :

The size of stars and the distance between them is enormous. To express such large distances, a unit called light year is commonly used. One light year is equal to the distance traveled by light in one year. Light travels 3 × 105 km in one second. A year has 365 × 24 × 60 × 60 = 3.1536 × 107 seconds. Thus, light will travel a distance of 3 × 105 × 3.1536 × 107 km in one year. This is equal to 9.46 × 1012 km. Thus one light year is equal to the distance of 9.46 × 1012 km.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses