Abrasive (Invention)
Invention of Abrasive Abrasives as a class are simply hard substances used to rub-nard material to form softer substances. I…
Invention of Abrasive Abrasives as a class are simply hard substances used to rub-nard material to form softer substances. I…
Discovery of ABO Blood Groups The Austrian - born American Biologist Karl Landsteiner in 1901 was the first to classify hum…
Invention of Abacus A calculating device consisting of balls strung on wires or rods set in a frame. It is probably of Babyl…
Discovery of Abaca It is a plant grown in Borneo, Philippines and Sumatra for its fibre. The plant grows about 6 metres high…
Spectrometer Experiment Viva Questions with Answers (i) Why is a spectrometer so called? Ans: It is an instrument to study t…
Tangent Galvanometer Experiment Viva Questions (1) What is meant by a tangent galvanometer? A tangent galvanometer is a mo…
The Jolly's Bulb Apparatus Experiment Viva Questions 1. What is the name of the instrument used for measuring atmospheri…