***Imp. GK (must read)*** - 1) The theory of relativity was propounded by Albert Einstein 02) The principal metal used in manufacturing steel is -Iron 03) An alimeter is used for measuring - Altitude 04) Oology is the study of -Birds eggs 05)Radioactivit y was discovered by - Henry Bacquerel 06) The metal used in storage batteries is -Lead 07) The instrument used to measure the relative humidity of air is - Hygrometer 08)Barometer was invented by - Torricelli 09) The unit of power is -Watt 10) Radium was discovered by -Marie and Pierrie
Posted on: Fri, 28 Jun 2013 03:28:36 +0000
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