निम्नलिखित में से कौन सा उपकरण कार्नोट प्रमेय (Carnot's theorem) द्वारा शासित होता है?

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?