एक छात्र देखता है कि धारा ले जाने वाले तार के पास रखी चुंबकीय दिशासूचक सुई विक्षेपित होती है। यह अवलोकन किसके अनुरूप है?

Which of the following organizations was instrumental in advocating for the abolition of Sati in India?

Who was the first President of independent India?

Who among the following was the founder of the 'Gadar Party'?