घूमती हुई वस्तुओं की स्थिति और कोणीय वेग को मापने या बनाए रखने के लिए किस यंत्र का उपयोग किया जाता 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?