Physics Quiz 1:-
Q.1 Which is used as a coolant in nuclear reactors?
Ans. Heavy Water
Q.2 Which scale is used to measure intensity of earthquake?
Ans. Richter
Q.3 Best quality of coal?
Ans. Anthracite
Q.4 What is the Escape velocity at Earth’s surface?
Ans. 11.2 km/s
Q.5 Radioactivity was discovered by ?
Ans. Henry Becquerel