General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 7)
7.
Light year is a unit of
Discussion:
34 comments Page 1 of 4.
Desalegn Degu said:
7 years ago
A light year is the unit of actual distance.
(1)
Yesvanth said:
7 years ago
Unit described as a distances between objects in the universe.
(1)
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.
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.
Mohan raj said:
1 decade ago
Light year means, Eg: When we travel at a speed of light(3*10^8m/s) we will cover the distance of sun in 8sec.
Ram mohan said:
1 decade ago
Yes it's correct, light travels in one year is called light year, we can measure the distance.
Devan said:
1 decade ago
Light is the fastest one till today so we use light to measure the distance of heavenly bodies by knowing their speed in free space.
Amit sharma said:
1 decade ago
It is very big unit of distance that's why we can not use in daily life.
Abc said:
10 years ago
1 light year = 1.0 cm/m square.
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