Consider a particle of mass m in a one-dimensional δ-function potential V(x) = V0 δ(x). If V0 is negative, there exists a bound state. The binding energy of this state is:

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?