स्पष्ट दृष्टि की न्यूनतम दूरी (सबसे आरामदायक दूरी) जिस पर एक सामान्य आंख से स्पष्ट रूप से पढ़ा जा सकता है, लगभग _____ 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?