निम्नलिखित में से कौन-सा बल ऐसे बल का उदाहरण है जो एकसमान वृत्तीय गति में वस्तु की चाल बदले बिना लगातार उसकी गति की दिशा को बदलता है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?