General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 7)
7.
Light year is a unit of
Discussion:
34 comments Page 2 of 4.
Priti said:
1 decade ago
Yes, light year is the unit of distance. It is the distance travelled by light in one year is called light year.
Sundeep said:
1 decade ago
Light year is a unit used to measure astronomical distances.
Madhav said:
1 decade ago
Light year is a unit of distance 'and one light year is 9.46*10^15m.
Sandeep said:
1 decade ago
Yes distance traveled by light in one year is called light year.
Ravi kumar said:
1 decade ago
Yes light year is the unit of distance travel by light in one year.
Kalyan said:
1 decade ago
1 light year = distance travel by light in one year.
Payal said:
1 decade ago
A light year is unit of distance to measure long distances like distances b/w stars. Because it becomes so difficult to measure distances in kilometers. 1 light year = 9.46*10^12 Km. It is a distance traveled by a light in one year. The nearest star to earth next to sun is Alpha Centauri which is about 4.3 light years away. The brightest star of our sky is Siris and is 8.6 light years away from us.
Bhavana said:
1 decade ago
Light year is used to measure the distance travelled by the light in one year.
Asim said:
1 decade ago
Light is energy that can travel 3*10^8 m/s.
1 lightyear = 3*10^8*365*24*3600 = 9.4608*10^15 m = 9.4*10^12 km.
1 lightyear = 3*10^8*365*24*3600 = 9.4608*10^15 m = 9.4*10^12 km.
Abhi said:
1 decade ago
1 light year equals to 90000000000000 km the unit is in km which is the unit of distance so 1 light year is a distance travelled by light in one year.
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