Relativity physics - When you talk about any Planet or Star and say that is 100 light years away from planet earth... Then no wonder many peoples Would think about what is
![Light year is the unit of which physical quantity - Physics - Units And Measurements - 13847159 | Meritnation.com Light year is the unit of which physical quantity - Physics - Units And Measurements - 13847159 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_fd15646453dffe9012ea4045489abeb1.png)
Light year is the unit of which physical quantity - Physics - Units And Measurements - 13847159 | Meritnation.com
![Measurements & Units. Astronomical Measurements – the Metric System Units of length: –meter (m) 1 yd. 4 in. –kilometer (km) = 1000 m or about 0.6 mi. - ppt download Measurements & Units. Astronomical Measurements – the Metric System Units of length: –meter (m) 1 yd. 4 in. –kilometer (km) = 1000 m or about 0.6 mi. - ppt download](https://images.slideplayer.com/25/7951660/slides/slide_3.jpg)