11. In cesium atomic clock ..............is used.
12. In which of following system, scientific data can be exchanged between different parts of the world?
13. Instrumental error can be minimised by
14. Light year is a unit for the measurement of
15. Maxwells equations relate to
16. Nano size of gold has ..............colour.
17. Out of the following units, which is NOT a fundamental unit?
18. S.I system of unit contains ..............supplementary unit.
19. Significant figures depends upon the ..............of the measuring instrument.
20. State the number of significant figures in6.032 J
USA - United States of America Canada United Kingdom Australia New Zealand South America Brazil Portugal England Scotland Norway Ireland Denmark France Spain Poland Netherland Germany Sweden South Africa Ghana Tanzania Nigeria Kenya Ethiopia Zambia Singapore Malaysia India Pakistan Nepal Taiwan Philippines Libya Cambodia Hong Kong China UAE - Saudi Arabia Qatar Oman Kuwait Bahrain Dubai Israil and many more....