F(t) is a periodic square wave function that takes only two values, 4 and 0, and stays at each of these values for 1 second before changing. What is the constant term (DC component) in the Fourier series expansion of F(t)?

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?