A polaroid sheet is rotated between two crossed polarizers. The intensity of transmitted light would be maximum when the angle between the transmission axes of the first polarizer and the polaroid sheet 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?