पराश्रव्य तरंगों का उपयोग किसमें किया जाता है?

Who is regarded as a pioneering figure in modern Indian feminism for her writings on women's rights and social issues?

Who led the Indian independence movement primarily through a non-violent approach?

What was the significant role of 'Satyagraha' in the Indian independence movement?

Which of the following events is widely considered a turning point in the Indian independence movement?

Which event, triggered by the Communal Award of 1932, led to protests and negotiations aimed at securing voting rights and representation for Depressed Classes, with Dr. B.R. Ambedkar playing a key role?