In a two-stage reciprocating air compressor, air inlet occurs at 1.5 bar while the delivery pressure is 54 bar. For minimum work input, the ideal intercooler pressure must be:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?