एक प्रणाली का तरंग फलन (wave function) ψ(r, θ, φ) = A exp(-r/a0) द्वारा दिया गया है, जहाँ r ≥ 0 है। यदि इस मूल अवस्था (ground state) को विभव (potential) V' = V0a0(x2r) द्वारा विक्षोभित (perturbed) किया जाता है, तो ऊर्जा में प्रथम-क्रम सुधार (first-order correction) क्या होगा?

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?