The parliament can legislate on a subject in the state list
Options: if the Rajya Sabha passes a resolution by two-third majority declaring the subject in state list of national importance, if the legislatures of two or more states recommend to the Parliament to legislate on such a subject with regard to those states, for the implementation of treaties and agreements with foreign powers, All the above
Options: to test the performance of an indigenously built heat-shield, to hit target without the help of the Air Forces, to defend a large installations like oil-fields etc. against enemy attacks, None of the above
The current price index (base 1960) is nearly 330. This means that
Options: all items cost 3-3 times more than what they did in 1960, the prices of certain selected items have gone up to 3-3 times, weighted means of prices of certain item has increased 3-3 times, gold price has gone up 3-3 times
Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent?