अपवर्तन के स्नेल नियम का गणितीय रूप क्या है?

Who was the last Nizam of Hyderabad?

The Lucknow Pact of 1916 was a significant agreement between the Indian National Congress and which other organization?

The 'Doctrine of Lapse' was introduced by which Governor-General of India?

What significant event is associated with August 15, 1947, in Indian history?

Which of the following movements is considered the first major non-violent protest against British rule in India, predating the Gandhian era?