- There are ……. seconds in one year. 25.3.17 x 107
- The size of the universe is ……… time larger than that of an elementary particle. 26.1041
- A 45 mih-1 is equal to …….. fts-1. 27.66
28.A metre stick is …. than the yard stick. 28.longer
- One gram is equal to …. kg. 29.10-3
- Physics is the subject which studies ………. phenomena. 30.natural
Key>>>
1.unit 2. standard 3. basic 4.derived 5. FPS 6.time
7.gram 8. length 9.m^210. British system 11. 5.068 × 〖10〗^3 12. derived
- second 14.kilogram 15. largest 16. mass 17. MKS
