In Young's double-slit experiment, the maximum intensity on the screen is I0. The intensity at a point on the screen where the path difference between the interfering light waves is λ4 is:

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?