जब पिण्ड की चाल पराध्वनिक हो जाती है, तो अपने पीछे जो शंक्वाकार विक्षोभ छोड़ती है, उसे क्या कहते हैं?

Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

What was one major impact of India’s independence on its economy?