According to Betz's law for an ideal horizontal axis wind turbine, what is the maximum possible value of the power coefficient (Cp), achieved when the fractional wind speed decrease at the turbine is 1/3 (axial induction factor a = 1/3)?

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?