For a nuclear spin with spin quantum number I = 1/2, precessing in a magnetic field at a Larmor frequency of 300 MHz, the wavelength of incident electromagnetic radiation required to excite the nuclear spins must be approximately:

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?